umbral | 3aa5fd9be59e523761738140b7a5906a3672a3b75827dad09911e3280f98680d | Triage

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16-06-2024 11:03

Sharing

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General

Target

Stealer.exe
Size

227KB
MD5

1d9aea272c24a72800c6448b30883296
SHA1

f2bf74dbaca750d00fc3e62a525fc16b26b8ce8b
SHA256

3aa5fd9be59e523761738140b7a5906a3672a3b75827dad09911e3280f98680d
SHA512

14925fd6f85f4f58a8bd10937d7326b4cf44ed8fb11d3333ba5f7c1f2755c5d005dc8dca9edb5a03b81b5e86c50f267bf779633c1241719cb39bac5e122b07b5
SSDEEP

6144:+loZM+rIkd8g+EtXHkv/iD4eBVnrRiK1ZwBzOur8xb8e1mLi:ooZtL+EP8eBVnrRiK1ZwBzOurwF

Score

10^/10

umbral stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3400-1-0x0000014EB6B80000-0x0000014EB6BC0000-memory.dmp	family_umbral

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3400	Stealer.exe

C:\Users\Admin\AppData\Local\Temp\Stealer.exe
"C:\Users\Admin\AppData\Local\Temp\Stealer.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3400

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3400-1-0x0000014EB6B80000-0x0000014EB6BC0000-memory.dmp

Filesize
256KB

Download
memory/3400-0-0x00007FF8E4853000-0x00007FF8E4855000-memory.dmp

Filesize
8KB

Download
memory/3400-2-0x00007FF8E4850000-0x00007FF8E5311000-memory.dmp

Filesize
10.8MB

Download
memory/3400-3-0x00007FF8E4850000-0x00007FF8E5311000-memory.dmp

Filesize
10.8MB

Download