MALICIOUS — 74dc27458bfa12b03b5cc3a88bc6995eb62c73daa2f21caa1c48e7d75213321c
MALICIOUS — 74dc27458bfa12b03b5cc3a88bc6995eb62c73daa2f21caa1c48e7d75213321c is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Ausiv family. 7 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
74dc27458bfa12b03b5cc3a88bc6995eb62c73daa2f21caa1c48e7d75213321c - SHA-1:
446096a4e723cddd9a40e712ae2f4e5855841b7f - MD5:
c7619de7f9a8d3371f278a9ffdcae23a - imphash:
b10d16eedb1085ef7262dfc4ab03be6f - ssdeep:
1536:KEq3GcOK+LOBk8admpNNxEycf0sgTDFhNGpWMlwl8B9QcQnm6IUNwh+HNGzC:KEqpa+NNxpsyFhNGpWvcQnm6oh+4C - TLSH:
T1A33A6395634CF43FDDA9AFC30674746CDE4215AD2D81768FACD096E950B8C0BA50BB80 - Submitted as: 74dc27458bfa12b03b5cc3a88bc6995eb62c73daa2f21caa1c48e7d75213321c
- File type: pe · Size: 94936 bytes
- Verdict: malicious (97/100) · Family: Ausiv
Detections (7 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Ausiv-9881309-1
- 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 97/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Malware.Ausiv-9881309-1 (rule
Win.Malware.Ausiv-9881309-1) - engine signal, weight 0.90, confidence 0.95 - Contacted 25 external host(s) at runtime (22 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 - 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
Dynamic analysis (windows)
25561 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
- C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-kernel32-legacy-l1-1-1.dll -
dfac3459427cb7caac7428c99225c6cadf3c0e3627f2d4766cc7f8ccc0638807 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\java.exe -
4d81600d757c554a115d42ebe19c18c2e523a9f1c6a8ae9cb028311192be3833 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-synch-l1-1-0.dll -
7e3cb3c90a40e7f15f6ebf9d30c3c384c8000a70f4bf94a79bb2c9e57939d3c5 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jli.dll -
0b24a7d22494c41b26cbfbaebec2525334ad73f529f1c2ca06b6c84af1d27524 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\javaaccessbridge.dll -
7481d40b053beef59c6cf564d93f40d6bfd1a69b4af0d0936fb63850616c4ae0 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\keytool.exe -
1afc0632628acb45481897a812b6ad3804fb89e2820352cb1ddefd6d5c88e87a - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll -
b7159fc34dd78986fb828a5deb3101173db52b3349c0c21c78eaf75b04e9179c - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-profile-l1-1-0.dll -
53f2a8b563dda4a5e29342041e61dd7cbf4cd1aa34ba5571106c1485a1a3fa20 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-processenvironment-l1-1-0.dll -
5b29f3a634d72434297dae2ee545d4b4dac512ef3af82ec418fd3591f9f51c89 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jsvml.dll -
3d289712cf35c669f18073e366e57e6337d885e77cd13f294a91dd46d4ae3b2b - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\jimage.dll -
0eaa46833b8a19225324da8e42c92c76ad6698fa3d30b918673846d32f040820 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\fontmanager.dll -
4da51114a86b07538acd7b2e6f7370aa3b4f9c18086006878b664deb1dc04b68 - C:\Program Files\Eclipse Adoptium\jdk-21.0.5+11-jre\bin\api-ms-win-core-datetime-l1-1-0.dll -
cdf7b81424b83b6e4140d4caa11a49e14afbd0efbaad88c794f70f4a45c5c46b - C:\$WinREAgent\Backup\location.txt -
8ae977091be5e9ede586c9a4335b208e51e73d5bdaace04d7c1c11cb5acd302a - C:\Program Files\desktop.ini -
44041542e470af8495e6e99743cfebde7f4b85850c36f90e3488e7ce1963e4eb
Embedded URLs
- 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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787909150&P2=404&P3=2&P4=GbxmjI5jp%2fYjslEsvwQwdDrUVuJMX%2bvWzFYAvnan6d6Yg7s7tx%2fbJmcp7W3rLTV%2bGesTYgP9LtAYcKljZ2gLWg%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=1787909226&P2=404&P3=2&P4=JD9MGZXyNl9zM%2bUkNbHM0Ro5YF9OIuglljHznYnF66nW3qqt1T6ApHH6GuMskmfLuATPFtNJS9u049TIX4QS0A%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.182.141.63
- 52.123.252.242
- 4.230.171.124
- 48.211.4.16
- 4.144.132.223
- 74.178.76.128
- 20.165.94.54
- 4.150.223.109
- 52.123.252.239
- 92.223.78.30
- 20.236.44.162
- 52.123.128.14
- 52.123.129.14
- 203.26.79.13
- 172.178.240.162
- 135.233.95.80
- 52.123.252.215
- 52.148.114.188
- 135.233.45.223
- 72.154.7.101
- 52.168.117.174
- 104.208.16.94
- 20.165.94.46
- 52.110.12.19
- 52.110.12.33
File paths
- C:\Windows.old\Windows\containers\serviced\WindowsDefenderApplicationGuard.wim]
- C:\Windows\containers\serviced\WindowsDefenderApplicationGuard.wim][gle=0x00000020]
- C:\Windows.old\Windows\WinSxS\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.17134.1120_none_c3e
- C:\Windows.old\Windows\WinSxS\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.17134.1_none_eedfed
- X:\SysResetTrace-Tel-Merge.etl,
- C:\$WINDOWS.~BT\Sources\Panther\SysResetTrace-Tel-Merge.etl)
- X:\windows\system32\sysreset.exe
- C:\Windows\containers\serviced\WindowsDefenderApplicationGuard.wim]
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report