umbral | 3aa5fd9be59e523761738140b7a5906a3672a3b75827dad09911e3280f98680d | Triage

Analysis

max time kernel
3s
max time network
4s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 06:12

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
behavioral1/memory/3048-1-0x0000000000E40000-0x0000000000E80000-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	3048	Stealer.exe

C:\Users\Admin\AppData\Local\Temp\Stealer.exe
"C:\Users\Admin\AppData\Local\Temp\Stealer.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3048

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3048-0-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp

Filesize
4KB

Download
memory/3048-1-0x0000000000E40000-0x0000000000E80000-memory.dmp

Filesize
256KB

Download
memory/3048-2-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download