bbe0f74fca386e4bd78dd21c03f4b9f6086691318d684caca0fecb2122d28961

Analysis

max time kernel
128s
max time network
115s
platform
windows10_x64
resource
win10v20210408
submitted
14/08/2021, 06:57

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General

Target
0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
Size 631KB
Sample210814-9m4ap2539x
SHA256 bbe0f74fca386e4bd78dd21c03f4b9f6086691318d684caca0fecb2122d28961
MD5 0843c2b2637d5c7f6a9e4867ef2a9ff4
SHA1 8d16bb23e21ca07a3ac2069bc3458847d0758f90
SHA512 8571bcdc26eacf62c463038e7258bde1053db90ac2aea2d5e053c74b6201d370df8bcf0aa82bedf4be77d04bf53ec5c7992c2f32ab2d2c985df5ef74d17f2348
MD5 SHA1 SHA512

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\SteamUpdates = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\SteamUpdates\\SteamUpdates.exe\""	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 804 set thread context of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4016	powershell.exe
4016	powershell.exe
4016	powershell.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
3864	powershell.exe
3864	powershell.exe
3864	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	powershell.exe
Token: SeIncreaseQuotaPrivilege	4016	powershell.exe
Token: SeSecurityPrivilege	4016	powershell.exe
Token: SeTakeOwnershipPrivilege	4016	powershell.exe
Token: SeLoadDriverPrivilege	4016	powershell.exe
Token: SeSystemProfilePrivilege	4016	powershell.exe
Token: SeSystemtimePrivilege	4016	powershell.exe
Token: SeProfSingleProcessPrivilege	4016	powershell.exe
Token: SeIncBasePriorityPrivilege	4016	powershell.exe
Token: SeCreatePagefilePrivilege	4016	powershell.exe
Token: SeBackupPrivilege	4016	powershell.exe
Token: SeRestorePrivilege	4016	powershell.exe
Token: SeShutdownPrivilege	4016	powershell.exe
Token: SeDebugPrivilege	4016	powershell.exe
Token: SeSystemEnvironmentPrivilege	4016	powershell.exe
Token: SeRemoteShutdownPrivilege	4016	powershell.exe
Token: SeUndockPrivilege	4016	powershell.exe
Token: SeManageVolumePrivilege	4016	powershell.exe
Token: 33	4016	powershell.exe
Token: 34	4016	powershell.exe
Token: 35	4016	powershell.exe
Token: 36	4016	powershell.exe
Token: SeIncreaseQuotaPrivilege	4016	powershell.exe
Token: SeSecurityPrivilege	4016	powershell.exe
Token: SeTakeOwnershipPrivilege	4016	powershell.exe
Token: SeLoadDriverPrivilege	4016	powershell.exe
Token: SeSystemProfilePrivilege	4016	powershell.exe
Token: SeSystemtimePrivilege	4016	powershell.exe
Token: SeProfSingleProcessPrivilege	4016	powershell.exe
Token: SeIncBasePriorityPrivilege	4016	powershell.exe
Token: SeCreatePagefilePrivilege	4016	powershell.exe
Token: SeBackupPrivilege	4016	powershell.exe
Token: SeRestorePrivilege	4016	powershell.exe
Token: SeShutdownPrivilege	4016	powershell.exe
Token: SeDebugPrivilege	4016	powershell.exe
Token: SeSystemEnvironmentPrivilege	4016	powershell.exe
Token: SeRemoteShutdownPrivilege	4016	powershell.exe
Token: SeUndockPrivilege	4016	powershell.exe
Token: SeManageVolumePrivilege	4016	powershell.exe
Token: 33	4016	powershell.exe
Token: 34	4016	powershell.exe
Token: 35	4016	powershell.exe
Token: 36	4016	powershell.exe
Token: SeDebugPrivilege	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
Token: SeDebugPrivilege	200	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
Token: SeDebugPrivilege	3864	powershell.exe
Token: SeIncreaseQuotaPrivilege	3864	powershell.exe
Token: SeSecurityPrivilege	3864	powershell.exe
Token: SeTakeOwnershipPrivilege	3864	powershell.exe
Token: SeLoadDriverPrivilege	3864	powershell.exe
Token: SeSystemProfilePrivilege	3864	powershell.exe
Token: SeSystemtimePrivilege	3864	powershell.exe
Token: SeProfSingleProcessPrivilege	3864	powershell.exe
Token: SeIncBasePriorityPrivilege	3864	powershell.exe
Token: SeCreatePagefilePrivilege	3864	powershell.exe
Token: SeBackupPrivilege	3864	powershell.exe
Token: SeRestorePrivilege	3864	powershell.exe
Token: SeShutdownPrivilege	3864	powershell.exe
Token: SeDebugPrivilege	3864	powershell.exe
Token: SeSystemEnvironmentPrivilege	3864	powershell.exe
Token: SeRemoteShutdownPrivilege	3864	powershell.exe
Token: SeUndockPrivilege	3864	powershell.exe
Token: SeManageVolumePrivilege	3864	powershell.exe
Token: 33	3864	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 4016	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	77
PID 804 wrote to memory of 4016	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	77
PID 804 wrote to memory of 4016	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	77
PID 804 wrote to memory of 3824	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	80
PID 804 wrote to memory of 3824	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	80
PID 804 wrote to memory of 3824	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	80
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 804 wrote to memory of 200	804	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	81
PID 200 wrote to memory of 2244	200	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	83
PID 200 wrote to memory of 2244	200	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	83
PID 200 wrote to memory of 2244	200	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	83
PID 2244 wrote to memory of 3864	2244	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	84
PID 2244 wrote to memory of 3864	2244	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	84
PID 2244 wrote to memory of 3864	2244	0843c2b2637d5c7f6a9e4867ef2a9ff4.exe	84

C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
"C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:804
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection Bing.com
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4016
- C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
  C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
  2⤵
  PID:3824
- C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
  C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:200
- - C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe
    "C:\Users\Admin\AppData\Local\Temp\0843c2b2637d5c7f6a9e4867ef2a9ff4.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2244
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection Bing.com
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/200-230-0x00000000059B0000-0x00000000059B4000-memory.dmp

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memory/200-231-0x00000000059D0000-0x0000000005A16000-memory.dmp

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memory/200-227-0x00000000058E0000-0x0000000005938000-memory.dmp

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memory/200-229-0x0000000005980000-0x00000000059AA000-memory.dmp

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memory/200-221-0x0000000000400000-0x000000000045E000-memory.dmp

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memory/200-226-0x0000000005760000-0x0000000005761000-memory.dmp

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memory/804-119-0x0000000005290000-0x000000000578E000-memory.dmp

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memory/804-114-0x0000000000940000-0x0000000000941000-memory.dmp

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memory/804-220-0x0000000008240000-0x00000000082B6000-memory.dmp

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memory/804-120-0x00000000076F0000-0x000000000777C000-memory.dmp

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memory/804-118-0x0000000005410000-0x0000000005411000-memory.dmp

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memory/804-117-0x0000000005370000-0x0000000005371000-memory.dmp

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memory/804-116-0x0000000005790000-0x0000000005791000-memory.dmp

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memory/2244-240-0x0000000004E50000-0x000000000534E000-memory.dmp

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memory/3864-288-0x0000000006803000-0x0000000006804000-memory.dmp

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memory/3864-250-0x00000000076F0000-0x00000000076F1000-memory.dmp

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memory/3864-253-0x00000000081F0000-0x00000000081F1000-memory.dmp

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memory/3864-254-0x0000000006800000-0x0000000006801000-memory.dmp

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memory/3864-255-0x0000000006802000-0x0000000006803000-memory.dmp

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memory/4016-127-0x00000000046B2000-0x00000000046B3000-memory.dmp

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memory/4016-166-0x00000000046B3000-0x00000000046B4000-memory.dmp

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memory/4016-149-0x000000000A120000-0x000000000A121000-memory.dmp

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memory/4016-141-0x0000000008F50000-0x0000000008F51000-memory.dmp

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memory/4016-140-0x0000000008EE0000-0x0000000008EE1000-memory.dmp

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memory/4016-139-0x0000000009000000-0x0000000009001000-memory.dmp

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memory/4016-134-0x0000000008160000-0x0000000008161000-memory.dmp

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memory/4016-133-0x00000000082D0000-0x00000000082D1000-memory.dmp

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memory/4016-132-0x0000000007E00000-0x0000000007E01000-memory.dmp

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memory/4016-131-0x0000000007A90000-0x0000000007A91000-memory.dmp

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memory/4016-130-0x00000000077C0000-0x00000000077C1000-memory.dmp

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memory/4016-129-0x0000000007A20000-0x0000000007A21000-memory.dmp

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memory/4016-128-0x0000000007880000-0x0000000007881000-memory.dmp

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memory/4016-126-0x00000000046B0000-0x00000000046B1000-memory.dmp

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memory/4016-125-0x00000000070E0000-0x00000000070E1000-memory.dmp

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memory/4016-124-0x0000000006A70000-0x0000000006A71000-memory.dmp

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