MALICIOUS — ktab.exe
MALICIOUS — ktab.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Container family. 9 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
718135945546541ee3f78be858ea065f4867d5b36dea5efd18d59dd8486ecb67 - SHA-1:
fbf1257ad4ba0a657cbbeb8da02a332ee6de4884 - MD5:
9bda6bca349c7baeb22ab8dca8c28516 - imphash:
38aa7c2ff6ef0e48a9520d6702d08df4 - ssdeep:
6144:TeEriRsAxH/K2jye9POln4RUOeinwl5gaO5W2cRFWx5G3TYmw:igixH/dpPOV4uOeinggFQF45aw - TLSH:
T1784B9FB1021A1135E9FAAEB0A01CCEBCD0637849707C6F5E9147DB5D90D8AD3E8FA491 - Submitted as: ktab.exe
- File type: pe · Size: 475090 bytes
- Verdict: malicious (98/100) · Family: Container
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 98/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Agent-6943819-1 (rule
Win.Trojan.Agent-6943819-1) - engine signal, weight 0.90, confidence 0.95 - Contacted 21 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 83 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)
25529 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
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
Dropped files
- C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-handle-l1-1-0.dll -
2d86b803069d4f2c9e43b0abfc301cff33a3c38e12f9d1da098c4bbe407b3c21 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-synch-l1-2-0.dll -
7dca96cf8cdcceb8d9b5672b9348d309fc7c16c0d84f5ef3e46a4e07c29c65f8 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-fibers-l1-1-0.dll -
8ed7473005108ba0d40719c06079d54e6c9ff95915e65ab58338340687527c8d - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-convert-l1-1-0.dll -
92ae63e20ee58efb425a49f7d9c9b775d27615d921f89ebca6634b8de10d595b - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-interlocked-l1-1-0.dll -
3e6194e157c7f6297092e7e9d4b9b4490c04d6ecdda3dc50f993537d07f1f260 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-conio-l1-1-0.dll -
734375d98d22edef913a8ae280a7268045723ee7f6d35dcfa99073ce9ec74eb1 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\lcms.dll -
7b32fcd6263f8fb22dc2c4f9e3f7f5017ccd716be37c435b2324f6b9a9a7be93 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\management_agent.dll -
d9d6b43e51c6c6659d86cdd211255b5ee2a6279f354470b474f66eac59bfb5bf - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\javaaccessbridge.dll -
843877899a4a662728fa52cd36fd455d89e3e4caf098e215f897456678a44d06 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\j2pcsc.dll -
dc00f76ab46a39f2d0125d5009e393ccd2fc3e99660917f021652295e182a07a - 9de133ce9073f531cc45a2910a8bb34ab622d2f88e9822aa3acafa51296f80a3 -
9de133ce9073f531cc45a2910a8bb34ab622d2f88e9822aa3acafa51296f80a3 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-processthreads-l1-1-0.dll -
be99f07988fe042c64262e280cb9690ce007876df80d000f685ae85d2e9b96f7 - C:\$WinREAgent\Backup\boot.sdi -
d91cf23d30784179177cbd48eeb49442a350d7376b5c17408c065b5725066b31 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\j2gss.dll -
74394bfa45e582b2c73ffddc10859eee9336f4f5b35a814f2d3a697fc6938861 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-file-l2-1-0.dll -
6189f85cd7af41cabab7768830231586293d4ff71efa819caaaada9db3c508f2
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://schemas.microsoft.com/SMI/2005/WindowsSettings
- http://schemas.microsoft.com/SMI/2016/WindowsSettings
- http://www.digicert.com/CPS0
- http://www.eclipse.org/0
- 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=1787727139&P2=404&P3=2&P4=QhfUoUypqtDZa7S0GDP6YYZT%2fxLJK7FvfpPrcIEM%2f4eKWcnta8vOoRm1tqefRE%2fTg7%2b6AOsWFReahJoiqH7R6Q%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=1787727183&P2=404&P3=2&P4=bMH9mOuoIetQoIqpA%2fp9vI7N8n1JcOkEvndK2zqOLMXEYTT2cZuzca%2bH95D2YHhFi%2fxKR1Z1F126zVV3H8iDCg%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
- schemas.microsoft.com
- www.eclipse.org
Embedded IP addresses
- 203.26.79.13
- 92.223.78.30
- 72.154.7.113
- 52.123.252.236
- 51.105.71.137
- 4.230.171.124
- 52.253.84.76
- 85.210.196.11
- 74.179.77.204
- 74.178.240.51
- 20.42.65.88
- 20.231.239.246
- 52.123.129.14
- 40.103.64.242
- 52.123.128.14
- 135.233.45.221
- 135.232.92.34
- 135.234.160.244
- 52.148.114.188
- 52.110.12.49
- 52.110.12.44
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report