stealerium | 49d8c623abc37dff7af7d7ea15fa66b27504f166b5bf7a2d486c41ce7923a722

Resubmissions

28-05-2024 15:28

240528-swf9tsbd55 10

28-05-2024 15:26

240528-svjnkabd22 10

Analysis

max time kernel
133s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 15:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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-1-5-21-3558294865-3673844354-2255444939-1000\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

2104 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

3960 taskkill.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

stub.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 2940 stub.exe
Token: SeDebugPrivilege 3960 taskkill.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	stub.exe

pid	process
2104	timeout.exe

pid	process
3960	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2940	stub.exe
Token: SeDebugPrivilege	3960	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

stub.execmd.exe

description	pid	process	target process
PID 2940 wrote to memory of 1428	2940	stub.exe	cmd.exe
PID 2940 wrote to memory of 1428	2940	stub.exe	cmd.exe
PID 2940 wrote to memory of 1428	2940	stub.exe	cmd.exe
PID 1428 wrote to memory of 3008	1428	cmd.exe	chcp.com
PID 1428 wrote to memory of 3008	1428	cmd.exe	chcp.com
PID 1428 wrote to memory of 3008	1428	cmd.exe	chcp.com
PID 1428 wrote to memory of 3960	1428	cmd.exe	taskkill.exe
PID 1428 wrote to memory of 3960	1428	cmd.exe	taskkill.exe
PID 1428 wrote to memory of 3960	1428	cmd.exe	taskkill.exe
PID 1428 wrote to memory of 2104	1428	cmd.exe	timeout.exe
PID 1428 wrote to memory of 2104	1428	cmd.exe	timeout.exe
PID 1428 wrote to memory of 2104	1428	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:2940

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5B01.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1428

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:3008

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2940
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3960

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:2104

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5B01.tmp.bat
Filesize
57B

MD5
02bfc092eb77a63fbb13d8fdc5e89e78

SHA1
c35c44f2e34efa63e0dc9ff876de447c499b15c8

SHA256
6f1a26bbfeb5feb87527f38f72c5c9f1af419d5dfdc0198c577dd5806c00e3cf

SHA512
d372bdf1e8df51cd6c9ebf0d9f1ce82f37effc738b268c3578a690810f719627279e788bec8494b3f95ab9e9f9d43a21a967cbda65bce760c73120449bb6774e

Download Submit
memory/2940-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2940-1-0x00000000000B0000-0x0000000000242000-memory.dmp

Filesize
1.6MB

Download
memory/2940-2-0x0000000004BD0000-0x0000000004C36000-memory.dmp

Filesize
408KB

Download
memory/2940-3-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/2940-6-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download