umbral | 10d28e18a7df4b2c30e05e5e361f1724e0b6ea8c021d8105ee30354be79b98d1

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-10-2024 07:49

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General

Target

0x0007000000015f71-121.exe
Size

229KB
MD5

06129ffc46e854930cfcaa754ca1d487
SHA1

e7c173c48aa107ec63bd6f9030c9ec6fe889d832
SHA256

10d28e18a7df4b2c30e05e5e361f1724e0b6ea8c021d8105ee30354be79b98d1
SHA512

b7121a2a65f317edbc1b4dd8dec427c277fad2b521a211d1408bc06b79431c418dad32ed61481c5ef49511cd167846e026a86147ae77bd9b0e607918feb66ab9
SSDEEP

6144:tloZM+rIkd8g+EtXHkv/iD4OUCKbhS6FOAxDeebn4b8e1mSTi:voZtL+EP8OUCKbhS6FOAxDeebAo

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/972-1-0x0000000000130000-0x0000000000170000-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.

Processes:

flow ioc

4 ip-api.com

flow	ioc
4	ip-api.com

Suspicious use of AdjustPrivilegeToken 41 IoCs

Processes:

0x0007000000015f71-121.exewmic.exe

description	pid	process
Token: SeDebugPrivilege	972	0x0007000000015f71-121.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

Processes:

0x0007000000015f71-121.exe

description	pid	process	target process
PID 972 wrote to memory of 2868	972	0x0007000000015f71-121.exe	wmic.exe
PID 972 wrote to memory of 2868	972	0x0007000000015f71-121.exe	wmic.exe
PID 972 wrote to memory of 2868	972	0x0007000000015f71-121.exe	wmic.exe

C:\Users\Admin\AppData\Local\Temp\0x0007000000015f71-121.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000015f71-121.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:972
- 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/972-0-0x000007FEF6423000-0x000007FEF6424000-memory.dmp

Filesize
4KB

Download
memory/972-1-0x0000000000130000-0x0000000000170000-memory.dmp

Filesize
256KB

Download
memory/972-2-0x000007FEF6420000-0x000007FEF6E0C000-memory.dmp

Filesize
9.9MB

Download
memory/972-3-0x000007FEF6420000-0x000007FEF6E0C000-memory.dmp

Filesize
9.9MB

Download