umbral | 5656064ae4d3c302be4f376131bce57fa83ba30e94c329f33adb91836d7f4bf8

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral15/memory/2820-1-0x0000000000D10000-0x0000000000D54000-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
6	ip-api.com

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe
Token: SeIncreaseQuotaPrivilege	2868	wmic.exe
Token: SeSecurityPrivilege	2868	wmic.exe
Token: SeTakeOwnershipPrivilege	2868	wmic.exe
Token: SeLoadDriverPrivilege	2868	wmic.exe
Token: SeSystemProfilePrivilege	2868	wmic.exe
Token: SeSystemtimePrivilege	2868	wmic.exe
Token: SeProfSingleProcessPrivilege	2868	wmic.exe
Token: SeIncBasePriorityPrivilege	2868	wmic.exe
Token: SeCreatePagefilePrivilege	2868	wmic.exe
Token: SeBackupPrivilege	2868	wmic.exe
Token: SeRestorePrivilege	2868	wmic.exe
Token: SeShutdownPrivilege	2868	wmic.exe
Token: SeDebugPrivilege	2868	wmic.exe
Token: SeSystemEnvironmentPrivilege	2868	wmic.exe
Token: SeRemoteShutdownPrivilege	2868	wmic.exe
Token: SeUndockPrivilege	2868	wmic.exe
Token: SeManageVolumePrivilege	2868	wmic.exe
Token: 33	2868	wmic.exe
Token: 34	2868	wmic.exe
Token: 35	2868	wmic.exe
Token: SeIncreaseQuotaPrivilege	2868	wmic.exe
Token: SeSecurityPrivilege	2868	wmic.exe
Token: SeTakeOwnershipPrivilege	2868	wmic.exe
Token: SeLoadDriverPrivilege	2868	wmic.exe
Token: SeSystemProfilePrivilege	2868	wmic.exe
Token: SeSystemtimePrivilege	2868	wmic.exe
Token: SeProfSingleProcessPrivilege	2868	wmic.exe
Token: SeIncBasePriorityPrivilege	2868	wmic.exe
Token: SeCreatePagefilePrivilege	2868	wmic.exe
Token: SeBackupPrivilege	2868	wmic.exe
Token: SeRestorePrivilege	2868	wmic.exe
Token: SeShutdownPrivilege	2868	wmic.exe
Token: SeDebugPrivilege	2868	wmic.exe
Token: SeSystemEnvironmentPrivilege	2868	wmic.exe
Token: SeRemoteShutdownPrivilege	2868	wmic.exe
Token: SeUndockPrivilege	2868	wmic.exe
Token: SeManageVolumePrivilege	2868	wmic.exe
Token: 33	2868	wmic.exe
Token: 34	2868	wmic.exe
Token: 35	2868	wmic.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2868	2820	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe	30
PID 2820 wrote to memory of 2868	2820	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe	30
PID 2820 wrote to memory of 2868	2820	344b47e81ef94c8f7a3a1c229f4c167bcb516900647d82936084677320a4960c.exe	30

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:2820
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2868

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2820-0-0x000007FEF5933000-0x000007FEF5934000-memory.dmp

Filesize
4KB

Download
memory/2820-1-0x0000000000D10000-0x0000000000D54000-memory.dmp

Filesize
272KB

Download
memory/2820-2-0x000007FEF5930000-0x000007FEF631C000-memory.dmp

Filesize
9.9MB

Download
memory/2820-3-0x000007FEF5930000-0x000007FEF631C000-memory.dmp

Filesize
9.9MB

Download