MALICIOUS — b51c611a225e65e9e0a3a55694a5dde6419efa8fea0cf95b0bb6daabe69a5ca9
MALICIOUS — b51c611a225e65e9e0a3a55694a5dde6419efa8fea0cf95b0bb6daabe69a5ca9 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Ausiv family. 7 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
b51c611a225e65e9e0a3a55694a5dde6419efa8fea0cf95b0bb6daabe69a5ca9 - SHA-1:
2cd62b85d74ffc857534d285370df77e55252a2a - MD5:
e0f85132f18acf4f0bcf80477321ea83 - imphash:
b10d16eedb1085ef7262dfc4ab03be6f - ssdeep:
1536:KEq3GcOMXUdeHXUdekLaTMSFWjXUdeSFhNGpWs3hho63hht:KEqyLaTC0FhNGpWmoAt - TLSH:
T101396CD9825AA205C5BEAEBB1A1DDADDA403E82134BD07FDC293533F709F42726111A1 - Submitted as: b51c611a225e65e9e0a3a55694a5dde6419efa8fea0cf95b0bb6daabe69a5ca9
- File type: pe · Size: 91002 bytes
- Verdict: malicious (98/100) · Family: Ausiv
Detections (7 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Ausiv-9879689-1
- 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
- Kaspersky (KVRT): Virus.Win32.Agent.es
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Malware.Ausiv-9879689-1 (rule
Win.Malware.Ausiv-9879689-1) - engine signal, weight 0.90, confidence 0.95 - Contacted 25 external host(s) at runtime (19 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497 - dynamic signal, weight 0.40, confidence 0.75
- 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, high-entropy-sections:UPX1 - 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 (2 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
25563 behavior events · 0 ATT&CK techniques · 98 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
- e1702b7337fa64f2a2761ea38a7857197714e58e7756b5621c253a8a6add9bd8 -
e1702b7337fa64f2a2761ea38a7857197714e58e7756b5621c253a8a6add9bd8 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\j2gss.dll -
d43e5bfcb9ccbe99ba2b9fe0e2861b4da951464eb6d4d9c86c78416d7b3af1e8 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jaccesswalker.exe -
5eda739b26924768d4ac7e76e0fd2ea5bd450816d69dca157fd472a12b942f93 - 5c107562736633ce4dca1ea14e374a9e7fbf213448cdb7a8337b33d2eecad4ed -
5c107562736633ce4dca1ea14e374a9e7fbf213448cdb7a8337b33d2eecad4ed - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\java.exe -
8c51c07793b0df76cce9f4197361ff74030452c35ba03fcd2cff1c84c91a671d - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-profile-l1-1-0.dll -
d27c72d7ae4bd03dc43b35b152cd7578a0cc7e34da2ff6df087843edb38c61b2 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-libraryloader-l1-1-0.dll -
a8a26e9b92c4d99e66527ddd766cc446f6e32756c4c830e9529ac75a07fbb351 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-console-l1-2-0.dll -
f05897ba3f626acdec02a809c3494d0992569fecd82ce176cb0631f2b095d2e4 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-heap-l1-1-0.dll -
a480743148e59b6abc76582fd6b13d9b53328fd85587d8b1c60df19a1cbea351 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\extnet.dll -
0c9d7c312251fe8be9e51bc661313738d8fece761bdf6f460dcb7a65b9e7ecb5 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-crt-locale-l1-1-0.dll -
c5e931f67f1dc3feac66692b14a09689074468fcd2b2d64d5ef81f72ad7ac28b - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-errorhandling-l1-1-0.dll -
0637fa54d320c2eb5d24673ab65d2be7300dbc5af23d108e179c73ffc4df753c - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\management_agent.dll -
a2b8582146ccd0dcd26a4ce9fd2a1396588276e64d88d75b432b58e122eba182 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jaccessinspector.exe -
e8ca560473fdf1c525e0c3671216fc9249437e09a1f886e55ed8cece5cabcdb8 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-handle-l1-1-0.dll -
90d63fa16645545ae032a2c2e6dfa0f148bcae948cdf17897d5c3ce57434e233
Embedded URLs
- http://creativecommons.org/publicdomain/zero/1.0/
- 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=1787820380&P2=404&P3=2&P4=Vuqpsiy3TIKOFGDV6tpJh87M8v2sfq3Eu%2bUqiuX3DK8EFAo48Hlr2hG8lIcEPC1WJTcYgv%2bBDSoaElSQ7aIQew%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=1787820430&P2=404&P3=2&P4=H3NA9t10wIg%2fkb71TaJouNwjCZ9PJQwA6tCUATzkStuIgUl36jg4gVqiwRwfsOf3WQp9hHGG0JHkPzVLQ6vlpA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- debian.org
- creativecommons.org
- 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
- 2.7.6.1
- 52.110.12.31
- 52.110.12.45
- 20.42.73.31
- 52.123.252.203
- 20.42.179.192
- 4.230.171.124
- 52.230.60.54
- 74.179.77.204
- 74.178.240.51
- 52.168.112.66
- 52.123.128.14
- 20.76.201.171
- 172.66.2.5
- 52.123.129.14
- 135.234.160.244
- 52.123.252.246
- 92.223.78.30
- 52.123.252.220
- 74.178.76.44
- 203.26.79.13
- 52.123.252.241
- 52.148.114.188
- 172.178.240.161
- 72.153.5.134
More Ausiv samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report