MALICIOUS — api-ms-win-core-synch-l1-1-0.dll
MALICIOUS — api-ms-win-core-synch-l1-1-0.dll 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:
3cf766bf055683c9141df1249bacf60f155148194b73dff2961068614373eaf6 - SHA-1:
2b5e1af43249ae8483f0d37a798f33c25e1b6dee - MD5:
25dea6c3b3fbaa872887e982dac115c9 - imphash:
38aa7c2ff6ef0e48a9520d6702d08df4 - ssdeep:
6144:TeEriRsAxH/K2jye9POln4RUOeinwl5gaO5W2cRFAx5G3Te1D:igixH/dpPOV4uOeinggFQF+5 - TLSH:
T18D4BAFB1021A1131E9FABEB0901CCEBCD0637845717C6F6E9147DB5D9098AE3E8FA491 - Submitted as: api-ms-win-core-synch-l1-1-0.dll
- File type: pe · Size: 483758 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 25 external host(s) at runtime (20 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)
25457 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
- msedge.api.cdp.microsoft.com
Dropped files
- C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\management_agent.dll -
357fa06f0342e01e9a80fd2d37363122f0b3fda6aaebe5ad255b6ecfc16db9a7 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jawt.dll -
4d5efa7a9382f44e1f58dba83cfb15842d998fd6403474c4a5a7c7ba9f7bb9c8 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jdwp.dll -
a66dd142bf26fda47867ab207a8a32272701c036b78841eab9b27596da0baefc - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jwebserver.exe -
933718385738824368b419d4c3fe3d1c2cbdf5a6f9ab77cd686be6eb05f4fbf1 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-fibers-l1-1-0.dll -
9102628a86cab67a94f7f9dcce88490e8e95f8ab68c966e166fd79dc3595d2c4 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-localization-l1-2-0.dll -
b33a8a8cfbbf86adcbc32a7e4eb57e067edd84678a267688414bf2348c5f97ca - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll -
8b21bd7c0ed128aebe9f3601a519c451db55e45bf0cc9283cf0fe4c3a4ac92d6 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\j2gss.dll -
75ecbfff6d824c3ce1d8aa80a92729fde06a3bd4f072a2168d20ce150faa3273 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-file-l2-1-0.dll -
50fefe85761ac98882bb984410a1629f4a1261ff8a2be4ed480bf8784c515f95 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-conio-l1-1-0.dll -
7916b0dbcacb71324e06d91d60f49c854a55e27506961544aa48f413b8a9e857 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\j2pcsc.dll -
a0129807b448bb5a5ac308bf1f991b6f3270ba7f9c3946ee65641760e00b0656 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-console-l1-2-0.dll -
9752c3e81dc23be92fcba84adc06cef0731635f7963a73d8ef985aa0b048d38c - C:\Program Files\desktop.ini -
ac2ff45c78b976c9c810180c7516546f06ba01f9816eb44fcdc94939bba94525 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-synch-l1-2-0.dll -
6807cfafa8a8bb406a4f594171efdd6f210a2b0f23076d5f88dc35faac205a2b - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jsound.dll -
886aeaa7b6ca0022385f4aed13ac08418c2c587259cf1cfd856656c794f9f2f3
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.microsoft.com/pki/certs/MicCodSigPCA_2010-07-06.crt0
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
- http://www.microsoft.com/windows0
- 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=1787727018&P2=404&P3=2&P4=AZDzrHbW5xqPONSv%2fYrdBxdYswCMsj75CXwjr3sKnKtO4NzBaFceBkU1CeSuD8u6eed%2fm8IjLy1btvT0gvH7gQ%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
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
- crl.microsoft.com
- www.eclipse.org
Embedded IP addresses
- 203.26.79.13
- 4.150.223.111
- 20.247.185.124
- 4.247.188.224
- 4.230.171.124
- 74.178.76.128
- 20.184.175.5
- 74.178.240.51
- 74.179.77.204
- 135.232.92.34
- 20.236.44.162
- 52.123.129.14
- 52.123.128.14
- 4.150.223.99
- 172.178.240.161
- 52.110.12.54
- 52.110.12.15
- 57.155.104.224
- 4.150.223.98
- 52.168.117.168
- 52.148.114.188
- 135.233.45.223
- 72.154.7.113
- 52.110.12.24
- 52.110.12.11
More Container samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report