Analysis
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max time kernel
145s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
08-03-2024 10:12
Behavioral task
behavioral1
Sample
2c323453e9.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2c323453e9.exe
Resource
win10v2004-20240226-en
General
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Target
2c323453e9.exe
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Size
66KB
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MD5
a55bc3368a10ca5a92c1c9ecae97ced9
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SHA1
72ed32b0e8692c7caa25d61e1828cdb48c4fe361
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SHA256
2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009
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SHA512
da3187046c267b8053f0274de81665234dd07c1d06c61108878abccccb2f10bfe4bf7c53e0e4100ed76772b8b92bdd6c4953f19250f33be7dd9380ab3b63db3c
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SSDEEP
1536:HzICS4AT6GxdEe+TOdincJXvKvWLBjklE:4R7auJXSOhCE
Malware Config
Extracted
C:\bc67Kiq7z.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R
Signatures
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BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
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Renames multiple (166) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe -
Modifies Control Panel 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Control Panel\International 2c323453e9.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe 272 2c323453e9.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 272 2c323453e9.exe Token: SeDebugPrivilege 272 2c323453e9.exe Token: 36 272 2c323453e9.exe Token: SeImpersonatePrivilege 272 2c323453e9.exe Token: SeIncBasePriorityPrivilege 272 2c323453e9.exe Token: SeIncreaseQuotaPrivilege 272 2c323453e9.exe Token: 33 272 2c323453e9.exe Token: SeManageVolumePrivilege 272 2c323453e9.exe Token: SeProfSingleProcessPrivilege 272 2c323453e9.exe Token: SeRestorePrivilege 272 2c323453e9.exe Token: SeSecurityPrivilege 272 2c323453e9.exe Token: SeSystemProfilePrivilege 272 2c323453e9.exe Token: SeTakeOwnershipPrivilege 272 2c323453e9.exe Token: SeShutdownPrivilege 272 2c323453e9.exe Token: SeBackupPrivilege 2992 vssvc.exe Token: SeRestorePrivilege 2992 vssvc.exe Token: SeAuditPrivilege 2992 vssvc.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2c323453e9.exe"C:\Users\Admin\AppData\Local\Temp\2c323453e9.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:272
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2992
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
67KB
MD5753df6889fd7410a2e9fe333da83a429
SHA13c425f16e8267186061dd48ac1c77c122962456e
SHA256b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78
SHA5129d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444
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Filesize
175KB
MD5dd73cead4b93366cf3465c8cd32e2796
SHA174546226dfe9ceb8184651e920d1dbfb432b314e
SHA256a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22
SHA512ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63
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Filesize
1KB
MD58a485e9f1237d69236522d2409a7fc3c
SHA1fab1b7c56399623ae49ba840d0a88deb20099b5d
SHA256d9006d5c753c364b27388831f03332f404b719a66f344ce8b1a340da24e93d53
SHA512d0f2416496c77ad305de712ac8b6b42d9b57337eec88e66dddd8fc59309acda7a08ab3a492b961a850e8e501eafc0b23f6371af78210b86beefaae980e014483