stealerium | 49d8c623abc37dff7af7d7ea15fa66b27504f166b5bf7a2d486c41ce7923a722

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 16:05

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General

Target

Stub/stub.exe
Size

1.6MB
MD5

6627adf7167ee571e8fd6c8b1a0e8ae3
SHA1

03b9112660ee73c59d84e219f15bf24ae9df48db
SHA256

6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f
SHA512

e05896a6e0d09d4dafeb2467395ca06ae1e728a4aa079041dea82940caeb71646984604fdeea482748423b10257b8462db4f573682f9f719939143fdb5691c60
SSDEEP

49152:19Tq24GjdGSiqkqXfd+/9AqYanieKd0U:1YEjdGSiqkqXf0FLYW

Score

10^/10

stealerium stealer

Malware Config

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

stub.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation stub.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4044 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4988 taskkill.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

stub.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 3328 stub.exe
Token: SeDebugPrivilege 4988 taskkill.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	stub.exe

pid	process
4044	timeout.exe

pid	process
4988	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3328	stub.exe
Token: SeDebugPrivilege	4988	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

stub.execmd.exe

description	pid	process	target process
PID 3328 wrote to memory of 1384	3328	stub.exe	cmd.exe
PID 3328 wrote to memory of 1384	3328	stub.exe	cmd.exe
PID 3328 wrote to memory of 1384	3328	stub.exe	cmd.exe
PID 1384 wrote to memory of 4804	1384	cmd.exe	chcp.com
PID 1384 wrote to memory of 4804	1384	cmd.exe	chcp.com
PID 1384 wrote to memory of 4804	1384	cmd.exe	chcp.com
PID 1384 wrote to memory of 4988	1384	cmd.exe	taskkill.exe
PID 1384 wrote to memory of 4988	1384	cmd.exe	taskkill.exe
PID 1384 wrote to memory of 4988	1384	cmd.exe	taskkill.exe
PID 1384 wrote to memory of 4044	1384	cmd.exe	timeout.exe
PID 1384 wrote to memory of 4044	1384	cmd.exe	timeout.exe
PID 1384 wrote to memory of 4044	1384	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Stub\stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub\stub.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3328

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp52B4.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:4804

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 3328
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4988

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:4044

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp52B4.tmp.bat
Filesize
57B

MD5
d42e6e2c02cbd73398b0cc9646151c36

SHA1
6349b9704855e5e91c6a2e6f8efa8b9fe3cc0589

SHA256
d3106a8fd61c339fb59f0b01a3c61d879e25248b1d9e8d778d2376bc793847b0

SHA512
c4fbda06d6c758fc75e25f97188c9c086e3ed36f23629da6c009d0fb10891abcf03a426010ca0e5220a40e7e1bef82c8c6ad7fe2f3e1b98d8654d8ded134a1ca

Download Submit
memory/3328-0-0x00000000753BE000-0x00000000753BF000-memory.dmp

Filesize
4KB

Download
memory/3328-1-0x0000000000820000-0x00000000009B2000-memory.dmp

Filesize
1.6MB

Download
memory/3328-2-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/3328-3-0x00000000753B0000-0x0000000075B60000-memory.dmp

Filesize
7.7MB

Download
memory/3328-6-0x00000000753B0000-0x0000000075B60000-memory.dmp

Filesize
7.7MB

Download