MALICIOUS — 1fa94b75127f71cf953739f389969b31d6c681b5c39e32701c91dd350bc0bdb3
MALICIOUS — 1fa94b75127f71cf953739f389969b31d6c681b5c39e32701c91dd350bc0bdb3 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Sivis family. 9 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
1fa94b75127f71cf953739f389969b31d6c681b5c39e32701c91dd350bc0bdb3 - SHA-1:
a084d44c64b8b1e7837a65911cc814be06f2e9dd - MD5:
cd2a04918deea701f638bd22dd99dce3 - imphash:
38aa7c2ff6ef0e48a9520d6702d08df4 - ssdeep:
6144:TeEriRsAxH/K2jye9POln4RUOeinwl5gaO5W2cRFnnWR9q:igixH/dpPOV4uOeinggFQFnWXq - TLSH:
T1B64A9FB2111A1135D9FAAEB0A01CCE7CD0637949703C6F5E9087EB5C90E86D7E8FA491 - Submitted as: 1fa94b75127f71cf953739f389969b31d6c681b5c39e32701c91dd350bc0bdb3
- File type: pe · Size: 440155 bytes
- Verdict: malicious (99/100) · Family: Sivis
Detections (9 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Trojan.Agent-6943819-1
- YARA: delivr.to detections: DLV_ISO_IMG_Container_Lure
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:UPX
- Microsoft Defender: Virus:Win32/Sivis.A
- Emsisoft (Emergency Kit): Win32.Sivis.A
- Trellix Stinger (McAfee): PolyPatch-UPX
- Kaspersky (KVRT): Virus.Win32.Agent.es
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Agent-6943819-1 (rule
Win.Trojan.Agent-6943819-1) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 3 finding(s), e.g. process hidden from a listing (rule
windows.psxview.PsXView) - memory signal, weight 0.55, confidence 0.85 - Contacted 27 external host(s) at runtime (21 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497 - dynamic signal, weight 0.40, confidence 0.75
- YARA: delivr.to detections flagged DLV_ISO_IMG_Container_Lure (rule
DLV_ISO_IMG_Container_Lure) - engine signal, weight 0.35, confidence 0.70 - YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:UPX (rule
DIE:UPX) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: http://creativecommons.org/publicdomain/zero/1.0/, https://d.symcb.com/rpa0, http://s.symcb.com/universal-root.crl0 - static signal, weight 0.35, confidence 0.60
- Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
- Dropped 84 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
25473 behavior events · 0 ATT&CK techniques · 97 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\$WinREAgent\Backup\SrSettings.ini -
198bbb57dea51ba1a77ad6586bb9affad786a564abc59b73145903c8d8828bcd - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-timezone-l1-1-0.dll -
e212359898e9a7e83904e501f7e5293b2a92dc62d68f980c0baa14f21ab75f10 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\ktab.exe -
2e62fe853a4b898fb9c595950aa8ac3d31c7be77242c4e4cfe3a9f943732d471 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-heap-l1-1-0.dll -
47d09502fb1f8899acad3d4813dd5d29e033d1b9c798d61b3329db148b30e019 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\mlib_image.dll -
8973d8819c75c3302d7e8a2ecf3ad4d49b4621a4f548ecaa487dd5de95de85c9 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-string-l1-1-0.dll -
905f01211686b56d138bb84a6cfdd421e30c02f1c1627eb95425abfa17f1bfec - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-util-l1-1-0.dll -
6f405671c8a876820632e906a6ede47445f537048552136dda267addc75205aa - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\dt_socket.dll -
af202062f5820833cb6be5ebd81501778d59b89179c14bf0e4489e7d196947f6 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jawt.dll -
0a912b14413eccc2b089499f6e7d0314581163141e2757f40ef2f8862e402ec1 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-memory-l1-1-0.dll -
b471926fccd69c98faa4af7c9869b9c1e085c14876db9f8825b56a22058a859a - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-process-l1-1-0.dll -
80b3adf6e28eb9adbb50d55569ad92dfe4c14987c6311121d8cba32ea6bbec7c - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-processenvironment-l1-1-0.dll -
d1d0fb6a83ccf18c7928e9ebb1f2dd6983f619babb646d671b75c2d68d080ac2 - 12df79e46174a4d41758c730eac15aabafa4bff42d554879be45342ee5216da6 -
12df79e46174a4d41758c730eac15aabafa4bff42d554879be45342ee5216da6 - C:\$Recycle.Bin\S-1-5-21-976637724-599762485-334819845-1001\desktop.ini -
de7a070e0edc7990030be504b6e8bbb94dafe04a69cd4fa43acc261c27beef37 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-file-l1-2-0.dll -
1cc8d657f828cbf47c9ff91fce9717157c253b884b52488b229602172ea003f8
Embedded URLs
- http://creativecommons.org/publicdomain/zero/1.0/
- http://www.adobe.com/go/reader_system_reqs_it.UnmoveFilesRimozione
- http://www.adobe.com/go/reader_system_reqs_it
- https://www.digicert.com/CPS0
- http://cacerts.digicert.com/DigiCertEVCodeSigningCA-SHA2.crt0
- http://cacerts.digicert.com/DigiCertHighAssuranceEVRootCA.crt0
- http://crl3.digicert.com/DigiCertHighAssuranceEVRootCA.crl0@
- http://crl4.digicert.com/DigiCertHighAssuranceEVRootCA.crl0
- http://www.digicert.com/ssl-cps-repository.htm0
- https://d.symcb.com/rpa0
- http://s.symcb.com/universal-root.crl0
- https://d.symcb.com/rpa0@
- http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
- http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787769512&P2=404&P3=2&P4=JoAttEHx%2bLVjEbJBzxduLRRvETWgatSErkyihRggyqhsanMUmfCq19FYzX2hiwYzj5W%2fivqFJzDx1gO4rtLvTg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787769571&P2=404&P3=2&P4=EvhIwOX6fJnl5Sz9e%2fQVwDWMrsB1sJoce%2bqbrS%2fwIYHLcHci%2f7sEaPcNsz3luQvg2nT%2fMyZ6boMWVrteit6EHA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- creativecommons.org
- geocities.com
- www.adobe.com
- helpx.adobe.com
- www.microsoft.com
- crl3.digicert.com
- crl4.digicert.com
- www.digicert.com
- cacerts.digicert.com
- d.symcb.com
- s.symcb.com
- ts-crl.ws.symantec.com
- ts-aia.ws.symantec.com
Embedded IP addresses
- 4.150.223.115
- 52.123.252.248
- 52.253.84.76
- 4.230.171.124
- 172.215.188.225
- 52.123.252.218
- 20.165.94.63
- 135.233.95.135
- 51.132.193.104
- 52.123.129.14
- 40.104.4.2
- 20.76.201.171
- 40.99.133.242
- 57.154.63.210
- 203.26.79.13
- 135.233.45.221
- 92.223.78.30
- 52.123.252.229
- 74.178.232.29
- 52.110.12.28
- 52.110.12.1
- 52.148.114.188
- 52.168.112.67
- 20.42.65.90
- 72.145.35.108
More Sivis samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report