umbral | f3aa2b23a67f4dbcce9fff7bb084e70127e3e0c4f2ab0f605487c570a7408960

Analysis

max time kernel
128s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:12

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General

Target

6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe
Size

228KB
MD5

f0528ae31fc25783b362c035adf8f3e3
SHA1

df94b2ec593862065aadcab27d04f132414c5b47
SHA256

6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c
SHA512

bf6e13c32904d4d1ee41dfe526ae68dae02e19f9ca6fcd147b8ccbf41b1bc5bc61dcd38b598dd94641c17226f48b887622fd1ac7ef4b9a2c0390c9b0097c4d6c
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4jEh/t74szVKrd4UBG8Kb8e1mpi:DoZtL+EP8jEh/t74szVKrd4UBcT

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral12/memory/996-1-0x000001AD30C00000-0x000001AD30C40000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe
Token: SeIncreaseQuotaPrivilege	2788	wmic.exe
Token: SeSecurityPrivilege	2788	wmic.exe
Token: SeTakeOwnershipPrivilege	2788	wmic.exe
Token: SeLoadDriverPrivilege	2788	wmic.exe
Token: SeSystemProfilePrivilege	2788	wmic.exe
Token: SeSystemtimePrivilege	2788	wmic.exe
Token: SeProfSingleProcessPrivilege	2788	wmic.exe
Token: SeIncBasePriorityPrivilege	2788	wmic.exe
Token: SeCreatePagefilePrivilege	2788	wmic.exe
Token: SeBackupPrivilege	2788	wmic.exe
Token: SeRestorePrivilege	2788	wmic.exe
Token: SeShutdownPrivilege	2788	wmic.exe
Token: SeDebugPrivilege	2788	wmic.exe
Token: SeSystemEnvironmentPrivilege	2788	wmic.exe
Token: SeRemoteShutdownPrivilege	2788	wmic.exe
Token: SeUndockPrivilege	2788	wmic.exe
Token: SeManageVolumePrivilege	2788	wmic.exe
Token: 33	2788	wmic.exe
Token: 34	2788	wmic.exe
Token: 35	2788	wmic.exe
Token: 36	2788	wmic.exe
Token: SeIncreaseQuotaPrivilege	2788	wmic.exe
Token: SeSecurityPrivilege	2788	wmic.exe
Token: SeTakeOwnershipPrivilege	2788	wmic.exe
Token: SeLoadDriverPrivilege	2788	wmic.exe
Token: SeSystemProfilePrivilege	2788	wmic.exe
Token: SeSystemtimePrivilege	2788	wmic.exe
Token: SeProfSingleProcessPrivilege	2788	wmic.exe
Token: SeIncBasePriorityPrivilege	2788	wmic.exe
Token: SeCreatePagefilePrivilege	2788	wmic.exe
Token: SeBackupPrivilege	2788	wmic.exe
Token: SeRestorePrivilege	2788	wmic.exe
Token: SeShutdownPrivilege	2788	wmic.exe
Token: SeDebugPrivilege	2788	wmic.exe
Token: SeSystemEnvironmentPrivilege	2788	wmic.exe
Token: SeRemoteShutdownPrivilege	2788	wmic.exe
Token: SeUndockPrivilege	2788	wmic.exe
Token: SeManageVolumePrivilege	2788	wmic.exe
Token: 33	2788	wmic.exe
Token: 34	2788	wmic.exe
Token: 35	2788	wmic.exe
Token: 36	2788	wmic.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 2788	996	6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe	88
PID 996 wrote to memory of 2788	996	6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe	88

C:\Users\Admin\AppData\Local\Temp\6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe
"C:\Users\Admin\AppData\Local\Temp\6f46a588081210caf9fc5f69f68daa1eb869bfb5658baaa201c7d9f466e3a00c.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2788

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/996-0-0x00007FF81DCD3000-0x00007FF81DCD5000-memory.dmp

Filesize
8KB

Download
memory/996-1-0x000001AD30C00000-0x000001AD30C40000-memory.dmp

Filesize
256KB

Download
memory/996-2-0x00007FF81DCD0000-0x00007FF81E791000-memory.dmp

Filesize
10.8MB

Download
memory/996-4-0x000001AD4B170000-0x000001AD4B272000-memory.dmp

Filesize
1.0MB

Download
memory/996-5-0x00007FF81DCD0000-0x00007FF81E791000-memory.dmp

Filesize
10.8MB

Download