Analysis
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max time kernel
94s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
18-01-2025 23:40
General
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Target
2025-01-18_c1f1804f2b2b147f4b83617a4759b3ba_gandcrab.exe
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Size
93KB
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MD5
c1f1804f2b2b147f4b83617a4759b3ba
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SHA1
e5e8b97b0f2aaef264b00cad079e02f234a69ffa
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SHA256
ebbb39823cd6eaf3b4ae7737d7f6bb687efb6b9a588e5a0a3478c28b7455ad6f
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SHA512
60480a6805e1af87f6fe403b8753878c0bba013cfb63f794ef7f88c427ca78288657cb6258fc9c7bab8ce2f3a14b020d8a535d651ad347702f9c473f11492a95
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SSDEEP
1536:Yw2p3ieRXCkxEoSXf6GizDhp2keW8PaoYEJOcrHuTc+N:fSyex5yoSPmzKkeW8iEJjHU
Malware Config
Extracted
F:\$RECYCLE.BIN\S-1-5-21-3227495264-2217614367-4027411560-1000\HMOWXFBZTE-MANUAL.txt
gandcrab
http://gandcrabmfe6mnef.onion/8c29f114da0c7d47
Signatures
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Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Gandcrab family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (363) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Drops startup file 2 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Drops file in Program Files directory 28 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 45 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
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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\2025-01-18_c1f1804f2b2b147f4b83617a4759b3ba_gandcrab.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-18_c1f1804f2b2b147f4b83617a4759b3ba_gandcrab.exe"1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wbem\wmic.exe"C:\Windows\system32\wbem\wmic.exe" shadowcopy delete2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
8KB
MD5e05d89563e4fb0be8336a38aea0b1692
SHA14fd9fd2add8a352a8143d6cd9bcc8f459b28acb1
SHA256b8faae5bd39336418d115328adce5b2ac90f6b55a15e5311ae9530c636c7270c
SHA512398afff82f40a99f400ea2cf5b2e9c3b82694deda4c08144cc6847898a3ed01c14bf8cef07fdc499537a0af804e217191bfb0ab8b0688638e676b15b936386bd