umbral | f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bb

Analysis

max time kernel
13s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 08:04

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General

Target

f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe
Size

229KB
MD5

56c788116da32ec8e9ac3b1b0e66b520
SHA1

545f203f2bdf6fac2f131a76a5f36e21637b27ca
SHA256

f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bb
SHA512

7da85b8e5f92f4a448a10f5c60c21f46b3eb511fda461b15956339ca7130c901e05ad58856a3a3903cdb52b81c4051d3bb0222e87aefab87136351d1ff01734f
SSDEEP

6144:9loZM+rIkd8g+EtXHkv/iD4NFWuSQPL4PBECDjaawjmb8e1mmSsi:foZtL+EP8NFWuSQPL4PBECDjaEm

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2792-1-0x00000000012E0000-0x0000000001320000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer 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:

f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exewmic.exe

description	pid	process
Token: SeDebugPrivilege	2792	f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe
Token: SeIncreaseQuotaPrivilege	2856	wmic.exe
Token: SeSecurityPrivilege	2856	wmic.exe
Token: SeTakeOwnershipPrivilege	2856	wmic.exe
Token: SeLoadDriverPrivilege	2856	wmic.exe
Token: SeSystemProfilePrivilege	2856	wmic.exe
Token: SeSystemtimePrivilege	2856	wmic.exe
Token: SeProfSingleProcessPrivilege	2856	wmic.exe
Token: SeIncBasePriorityPrivilege	2856	wmic.exe
Token: SeCreatePagefilePrivilege	2856	wmic.exe
Token: SeBackupPrivilege	2856	wmic.exe
Token: SeRestorePrivilege	2856	wmic.exe
Token: SeShutdownPrivilege	2856	wmic.exe
Token: SeDebugPrivilege	2856	wmic.exe
Token: SeSystemEnvironmentPrivilege	2856	wmic.exe
Token: SeRemoteShutdownPrivilege	2856	wmic.exe
Token: SeUndockPrivilege	2856	wmic.exe
Token: SeManageVolumePrivilege	2856	wmic.exe
Token: 33	2856	wmic.exe
Token: 34	2856	wmic.exe
Token: 35	2856	wmic.exe
Token: SeIncreaseQuotaPrivilege	2856	wmic.exe
Token: SeSecurityPrivilege	2856	wmic.exe
Token: SeTakeOwnershipPrivilege	2856	wmic.exe
Token: SeLoadDriverPrivilege	2856	wmic.exe
Token: SeSystemProfilePrivilege	2856	wmic.exe
Token: SeSystemtimePrivilege	2856	wmic.exe
Token: SeProfSingleProcessPrivilege	2856	wmic.exe
Token: SeIncBasePriorityPrivilege	2856	wmic.exe
Token: SeCreatePagefilePrivilege	2856	wmic.exe
Token: SeBackupPrivilege	2856	wmic.exe
Token: SeRestorePrivilege	2856	wmic.exe
Token: SeShutdownPrivilege	2856	wmic.exe
Token: SeDebugPrivilege	2856	wmic.exe
Token: SeSystemEnvironmentPrivilege	2856	wmic.exe
Token: SeRemoteShutdownPrivilege	2856	wmic.exe
Token: SeUndockPrivilege	2856	wmic.exe
Token: SeManageVolumePrivilege	2856	wmic.exe
Token: 33	2856	wmic.exe
Token: 34	2856	wmic.exe
Token: 35	2856	wmic.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe

description	pid	process	target process
PID 2792 wrote to memory of 2856	2792	f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe	wmic.exe
PID 2792 wrote to memory of 2856	2792	f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe	wmic.exe
PID 2792 wrote to memory of 2856	2792	f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe	wmic.exe

C:\Users\Admin\AppData\Local\Temp\f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe
"C:\Users\Admin\AppData\Local\Temp\f67268d2659ceb1e8cf8a7560784372294bcd8f249f7c0efdf33216722a5f0bbN.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2856

Network

MITRE ATT&CK Matrix

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Downloads

memory/2792-0-0x000007FEF5E03000-0x000007FEF5E04000-memory.dmp

Filesize
4KB

Download
memory/2792-1-0x00000000012E0000-0x0000000001320000-memory.dmp

Filesize
256KB

Download
memory/2792-2-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download
memory/2792-3-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download