umbral | 5656064ae4d3c302be4f376131bce57fa83ba30e94c329f33adb91836d7f4bf8

Analysis

max time kernel
102s
max time network
142s
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, 06:25

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General

Target

344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe
Size

246KB
MD5

6f6984234dc6714ab8fb6ff673423d1e
SHA1

2976c3f2a47b976913758c1800db5350498a3bc1
SHA256

344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c
SHA512

686e2919cc945ac930073f9244435e40a2fa135a911ac26822c27ea9bb13b1e72b7beb828ca5ed8c45c18c349f11669bb9d0b41f246a7837755545d49627e6d5
SSDEEP

6144:5loZM7rIkd8g+EtXHkv/iD40M1nMS1NmPzus9x45Pb8e1mqiv:LoZcL+EP80M1nMS1NmPzus9x4dcv

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral16/memory/4572-1-0x0000023171450000-0x0000023171494000-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
10	ip-api.com

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	4572	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe
Token: SeIncreaseQuotaPrivilege	388	wmic.exe
Token: SeSecurityPrivilege	388	wmic.exe
Token: SeTakeOwnershipPrivilege	388	wmic.exe
Token: SeLoadDriverPrivilege	388	wmic.exe
Token: SeSystemProfilePrivilege	388	wmic.exe
Token: SeSystemtimePrivilege	388	wmic.exe
Token: SeProfSingleProcessPrivilege	388	wmic.exe
Token: SeIncBasePriorityPrivilege	388	wmic.exe
Token: SeCreatePagefilePrivilege	388	wmic.exe
Token: SeBackupPrivilege	388	wmic.exe
Token: SeRestorePrivilege	388	wmic.exe
Token: SeShutdownPrivilege	388	wmic.exe
Token: SeDebugPrivilege	388	wmic.exe
Token: SeSystemEnvironmentPrivilege	388	wmic.exe
Token: SeRemoteShutdownPrivilege	388	wmic.exe
Token: SeUndockPrivilege	388	wmic.exe
Token: SeManageVolumePrivilege	388	wmic.exe
Token: 33	388	wmic.exe
Token: 34	388	wmic.exe
Token: 35	388	wmic.exe
Token: 36	388	wmic.exe
Token: SeIncreaseQuotaPrivilege	388	wmic.exe
Token: SeSecurityPrivilege	388	wmic.exe
Token: SeTakeOwnershipPrivilege	388	wmic.exe
Token: SeLoadDriverPrivilege	388	wmic.exe
Token: SeSystemProfilePrivilege	388	wmic.exe
Token: SeSystemtimePrivilege	388	wmic.exe
Token: SeProfSingleProcessPrivilege	388	wmic.exe
Token: SeIncBasePriorityPrivilege	388	wmic.exe
Token: SeCreatePagefilePrivilege	388	wmic.exe
Token: SeBackupPrivilege	388	wmic.exe
Token: SeRestorePrivilege	388	wmic.exe
Token: SeShutdownPrivilege	388	wmic.exe
Token: SeDebugPrivilege	388	wmic.exe
Token: SeSystemEnvironmentPrivilege	388	wmic.exe
Token: SeRemoteShutdownPrivilege	388	wmic.exe
Token: SeUndockPrivilege	388	wmic.exe
Token: SeManageVolumePrivilege	388	wmic.exe
Token: 33	388	wmic.exe
Token: 34	388	wmic.exe
Token: 35	388	wmic.exe
Token: 36	388	wmic.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 388	4572	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe	88
PID 4572 wrote to memory of 388	4572	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe	88

C:\Users\Admin\AppData\Local\Temp\344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe
"C:\Users\Admin\AppData\Local\Temp\344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:388

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4572-1-0x0000023171450000-0x0000023171494000-memory.dmp

Filesize
272KB

Download
memory/4572-0-0x00007FFA2AC63000-0x00007FFA2AC65000-memory.dmp

Filesize
8KB

Download
memory/4572-2-0x00007FFA2AC60000-0x00007FFA2B721000-memory.dmp

Filesize
10.8MB

Download
memory/4572-4-0x00007FFA2AC60000-0x00007FFA2B721000-memory.dmp

Filesize
10.8MB

Download