Analysis
- max time kernel
150s - max time network
151s - platform
windows7_x64 - resource
win7v20210410 - submitted
07/06/2021, 05:44
Static task
static1
Behavioral task
behavioral1
Sample
a7a2ec958a2f5e012e786ab63cb220c1.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
a7a2ec958a2f5e012e786ab63cb220c1.exe
Resource
win10v20210410
windows10_x64
0 signatures
0 seconds
General
- Target a7a2ec958a2f5e012e786ab63cb220c1.exe
- Size 693KB
- Sample210607-3a5yybc8d6
- SHA256 8774f12d56159a7cbf0e8e2a3618721ea9ca23a7641fe7da417ac0380b5f8d7f
- MD5 a7a2ec958a2f5e012e786ab63cb220c1
- SHA1 469daf366689835bcb4487220eabe66b08e7c10c
- SHA512 0e2b83f2c21a837a5eb44795a3e4d09284537857298face1d2b275d6d38411e02212ef541cab02af662ddd2345c4a5ac10fa0af86f85a076166acc59c7c4af4b
- MD5 SHA1 SHA512
Score
8/10
Malware Config
Signatures
- Executes dropped EXE 3 IoCs
pid Process 1236 Server.sfx.exe 1748 Server.exe 368 proverka.exe - Modifies Windows Firewall 1 TTPs
- Loads dropped DLL 5 IoCs
pid Process 2032 cmd.exe 1236 Server.sfx.exe 1236 Server.sfx.exe 1236 Server.sfx.exe 1748 Server.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 31 IoCs
description pid Process Token: SeDebugPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe Token: 33 368 proverka.exe Token: SeIncBasePriorityPrivilege 368 proverka.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 308 wrote to memory of 2032 308 a7a2ec958a2f5e012e786ab63cb220c1.exe 26 PID 308 wrote to memory of 2032 308 a7a2ec958a2f5e012e786ab63cb220c1.exe 26 PID 308 wrote to memory of 2032 308 a7a2ec958a2f5e012e786ab63cb220c1.exe 26 PID 308 wrote to memory of 2032 308 a7a2ec958a2f5e012e786ab63cb220c1.exe 26 PID 2032 wrote to memory of 1236 2032 cmd.exe 28 PID 2032 wrote to memory of 1236 2032 cmd.exe 28 PID 2032 wrote to memory of 1236 2032 cmd.exe 28 PID 2032 wrote to memory of 1236 2032 cmd.exe 28 PID 1236 wrote to memory of 1748 1236 Server.sfx.exe 29 PID 1236 wrote to memory of 1748 1236 Server.sfx.exe 29 PID 1236 wrote to memory of 1748 1236 Server.sfx.exe 29 PID 1236 wrote to memory of 1748 1236 Server.sfx.exe 29 PID 1748 wrote to memory of 368 1748 Server.exe 33 PID 1748 wrote to memory of 368 1748 Server.exe 33 PID 1748 wrote to memory of 368 1748 Server.exe 33 PID 1748 wrote to memory of 368 1748 Server.exe 33 PID 368 wrote to memory of 1224 368 proverka.exe 34 PID 368 wrote to memory of 1224 368 proverka.exe 34 PID 368 wrote to memory of 1224 368 proverka.exe 34 PID 368 wrote to memory of 1224 368 proverka.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\a7a2ec958a2f5e012e786ab63cb220c1.exe"C:\Users\Admin\AppData\Local\Temp\a7a2ec958a2f5e012e786ab63cb220c1.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:308 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat" "2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Server.sfx.exeServer.sfx.exe -p344233153⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Users\Admin\AppData\Local\Temp\RarSFX1\Server.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX1\Server.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Users\Admin\AppData\Roaming\proverka.exe"C:\Users\Admin\AppData\Roaming\proverka.exe"5⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:368 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\proverka.exe" "proverka.exe" ENABLE6⤵PID:1224
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