Resubmissions
28/03/2025, 16:48
250328-va915aywc1 1025/03/2025, 13:36
250325-qv95eawzdw 1025/03/2025, 13:15
250325-qhpb6sznz8 1005/02/2025, 11:25
250205-njccwswkap 1024/06/2024, 18:49
240624-xgn4cazhpl 10Analysis
-
max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20250207-en -
resource tags
arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system -
submitted
25/03/2025, 13:36
Behavioral task
behavioral1
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.zip
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.zip
Resource
win10v2004-20250314-en
Behavioral task
behavioral3
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
Resource
win7-20250207-en
Behavioral task
behavioral4
Sample
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
Resource
win10v2004-20250314-en
General
-
Target
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe
-
Size
67KB
-
MD5
598c53bfef81e489375f09792e487f1a
-
SHA1
80a29bd2c349a8588edf42653ed739054f9a10f5
-
SHA256
22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6
-
SHA512
6a82ad5009588d2fa343bef8d9d2a02e2e76eec14979487a929a96a6b6965e82265a69ef8dd29a01927e9713468de3aedd7b5ee5e79839a1a50649855a160c35
-
SSDEEP
1536:RzICS4AT6GxdEe+TOdincJXvKv8Zg3kl:qR7auJXSkZg3C
Malware Config
Extracted
C:\7xTwFxfw5.README.txt
blackmatter
http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV
Signatures
-
BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
-
Blackmatter family
-
Renames multiple (137) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\7xTwFxfw5.bmp" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\7xTwFxfw5.bmp" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
pid Process 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Modifies Control Panel 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\International 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Key created \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallpaperStyle = "10" 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe -
Suspicious use of AdjustPrivilegeToken 17 IoCs
description pid Process Token: SeBackupPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeDebugPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: 36 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeImpersonatePrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeIncBasePriorityPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeIncreaseQuotaPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: 33 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeManageVolumePrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeProfSingleProcessPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeRestorePrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeSecurityPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeSystemProfilePrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeTakeOwnershipPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeShutdownPrivilege 2464 22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe Token: SeBackupPrivilege 2812 vssvc.exe Token: SeRestorePrivilege 2812 vssvc.exe Token: SeAuditPrivilege 2812 vssvc.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe"C:\Users\Admin\AppData\Local\Temp\22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6.exe"1⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2464
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2812
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD5f66968c47a64569e2281f65a95991be0
SHA1ef9e3e80bfbea4c3021b226cb8cd00687013b8a8
SHA2564b950c763006e7c4569df8742855cec31bf82f835bd7e2bdcb5f128db34c82bf
SHA512cb4ace1b3e891ab100b3950c6bc133b216e91c8978a3af1ffd75617b606bb7ceb0133f44d37a30a827655e5b84b016d736a732f5f37635bb727e1a5b722cad24
-
Filesize
71KB
MD583142242e97b8953c386f988aa694e4a
SHA1833ed12fc15b356136dcdd27c61a50f59c5c7d50
SHA256d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755
SHA512bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10
-
Filesize
183KB
MD5109cab5505f5e065b63d01361467a83b
SHA14ed78955b9272a9ed689b51bf2bf4a86a25e53fc
SHA256ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673
SHA512753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc