umbral | d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5ad

Analysis

max time kernel
102s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 14:15

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General

Target

d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe
Size

229KB
MD5

de642c4fe0ab2d0d2c8029b5b9999430
SHA1

fa60efdf7b935ca0fb389ca49b5ac3fc895c342a
SHA256

d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5ad
SHA512

63a872451703e1e0f2fe43a3cc4a4bc48366faa81c7243f2e1b7196aab9e05fb7e6a154c87d601b7fd4dcf4f2b386ad5b7474bb20c7d24fd5e9c79c95ac30ceb
SSDEEP

6144:dloZMLrIkd8g+EtXHkv/iD4VxCYhv0IHe2PxM4dtWMkb8e1mfi:/oZ0L+EP8VxCYhv0IHe2PxM4dud

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3340-1-0x0000027822620000-0x0000027822660000-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

6 ip-api.com

flow	ioc
6	ip-api.com

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exewmic.exe

description	pid	process
Token: SeDebugPrivilege	3340	d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe
Token: SeIncreaseQuotaPrivilege	3496	wmic.exe
Token: SeSecurityPrivilege	3496	wmic.exe
Token: SeTakeOwnershipPrivilege	3496	wmic.exe
Token: SeLoadDriverPrivilege	3496	wmic.exe
Token: SeSystemProfilePrivilege	3496	wmic.exe
Token: SeSystemtimePrivilege	3496	wmic.exe
Token: SeProfSingleProcessPrivilege	3496	wmic.exe
Token: SeIncBasePriorityPrivilege	3496	wmic.exe
Token: SeCreatePagefilePrivilege	3496	wmic.exe
Token: SeBackupPrivilege	3496	wmic.exe
Token: SeRestorePrivilege	3496	wmic.exe
Token: SeShutdownPrivilege	3496	wmic.exe
Token: SeDebugPrivilege	3496	wmic.exe
Token: SeSystemEnvironmentPrivilege	3496	wmic.exe
Token: SeRemoteShutdownPrivilege	3496	wmic.exe
Token: SeUndockPrivilege	3496	wmic.exe
Token: SeManageVolumePrivilege	3496	wmic.exe
Token: 33	3496	wmic.exe
Token: 34	3496	wmic.exe
Token: 35	3496	wmic.exe
Token: 36	3496	wmic.exe
Token: SeIncreaseQuotaPrivilege	3496	wmic.exe
Token: SeSecurityPrivilege	3496	wmic.exe
Token: SeTakeOwnershipPrivilege	3496	wmic.exe
Token: SeLoadDriverPrivilege	3496	wmic.exe
Token: SeSystemProfilePrivilege	3496	wmic.exe
Token: SeSystemtimePrivilege	3496	wmic.exe
Token: SeProfSingleProcessPrivilege	3496	wmic.exe
Token: SeIncBasePriorityPrivilege	3496	wmic.exe
Token: SeCreatePagefilePrivilege	3496	wmic.exe
Token: SeBackupPrivilege	3496	wmic.exe
Token: SeRestorePrivilege	3496	wmic.exe
Token: SeShutdownPrivilege	3496	wmic.exe
Token: SeDebugPrivilege	3496	wmic.exe
Token: SeSystemEnvironmentPrivilege	3496	wmic.exe
Token: SeRemoteShutdownPrivilege	3496	wmic.exe
Token: SeUndockPrivilege	3496	wmic.exe
Token: SeManageVolumePrivilege	3496	wmic.exe
Token: 33	3496	wmic.exe
Token: 34	3496	wmic.exe
Token: 35	3496	wmic.exe
Token: 36	3496	wmic.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe

description	pid	process	target process
PID 3340 wrote to memory of 3496	3340	d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe	wmic.exe
PID 3340 wrote to memory of 3496	3340	d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe	wmic.exe

C:\Users\Admin\AppData\Local\Temp\d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe
"C:\Users\Admin\AppData\Local\Temp\d3764d7fe620e10d3e6004f41ff78e9a7cc7345683331568c9d9c2f62044c5adN.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3496

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3340-0-0x00007FFD37FB3000-0x00007FFD37FB5000-memory.dmp

Filesize
8KB

Download
memory/3340-1-0x0000027822620000-0x0000027822660000-memory.dmp

Filesize
256KB

Download
memory/3340-2-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

Filesize
10.8MB

Download
memory/3340-4-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

Filesize
10.8MB

Download