Analysis
- max time kernel
149s - max time network
165s - platform
windows10_x64 - resource
win10v20210410 - 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 2668 Server.sfx.exe 2684 Server.exe 3064 proverka.exe - Modifies Windows Firewall 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 33 IoCs
description pid Process Token: SeDebugPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe Token: 33 3064 proverka.exe Token: SeIncBasePriorityPrivilege 3064 proverka.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4024 wrote to memory of 2032 4024 a7a2ec958a2f5e012e786ab63cb220c1.exe 75 PID 4024 wrote to memory of 2032 4024 a7a2ec958a2f5e012e786ab63cb220c1.exe 75 PID 4024 wrote to memory of 2032 4024 a7a2ec958a2f5e012e786ab63cb220c1.exe 75 PID 2032 wrote to memory of 2668 2032 cmd.exe 79 PID 2032 wrote to memory of 2668 2032 cmd.exe 79 PID 2032 wrote to memory of 2668 2032 cmd.exe 79 PID 2668 wrote to memory of 2684 2668 Server.sfx.exe 80 PID 2668 wrote to memory of 2684 2668 Server.sfx.exe 80 PID 2668 wrote to memory of 2684 2668 Server.sfx.exe 80 PID 2684 wrote to memory of 3064 2684 Server.exe 83 PID 2684 wrote to memory of 3064 2684 Server.exe 83 PID 2684 wrote to memory of 3064 2684 Server.exe 83 PID 3064 wrote to memory of 2172 3064 proverka.exe 85 PID 3064 wrote to memory of 2172 3064 proverka.exe 85 PID 3064 wrote to memory of 2172 3064 proverka.exe 85
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:4024 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Server.sfx.exeServer.sfx.exe -p344233153⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Users\Admin\AppData\Local\Temp\RarSFX1\Server.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX1\Server.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2684 -
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:3064 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\proverka.exe" "proverka.exe" ENABLE6⤵PID:2172
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