stealerium | 6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 08:36

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General

Target

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
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

2704 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2656 taskkill.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

stub.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 2772 stub.exe
Token: SeDebugPrivilege 2656 taskkill.exe

pid	process
2704	timeout.exe

pid	process
2656	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2772	stub.exe
Token: SeDebugPrivilege	2656	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

stub.execmd.exe

description	pid	process	target process
PID 2772 wrote to memory of 2664	2772	stub.exe	cmd.exe
PID 2772 wrote to memory of 2664	2772	stub.exe	cmd.exe
PID 2772 wrote to memory of 2664	2772	stub.exe	cmd.exe
PID 2772 wrote to memory of 2664	2772	stub.exe	cmd.exe
PID 2664 wrote to memory of 2716	2664	cmd.exe	chcp.com
PID 2664 wrote to memory of 2716	2664	cmd.exe	chcp.com
PID 2664 wrote to memory of 2716	2664	cmd.exe	chcp.com
PID 2664 wrote to memory of 2716	2664	cmd.exe	chcp.com
PID 2664 wrote to memory of 2656	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 2656	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 2656	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 2656	2664	cmd.exe	taskkill.exe
PID 2664 wrote to memory of 2704	2664	cmd.exe	timeout.exe
PID 2664 wrote to memory of 2704	2664	cmd.exe	timeout.exe
PID 2664 wrote to memory of 2704	2664	cmd.exe	timeout.exe
PID 2664 wrote to memory of 2704	2664	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp9C01.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:2664

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:2716

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2772
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2656

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:2704

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\tmp9C01.tmp.bat
Filesize
57B

MD5
3e8058bc4ef5d56509802a3011fb6b03

SHA1
b14cd46cbd1f4c04ffc0b86afdae7c73acbacb07

SHA256
72484263b9d69f5beb124db722e2b2fecf62b913645fd395ed1cd34544e2631a

SHA512
e4a732777b5bdd3a9bdd121343a0af6c85c90c5cfe850600ff05fdbfdc1a3f1eafda985e3b816f9f7cbd29b0c7af121fcf571a0f952c0ebcbd7a478564351413

Download Submit
memory/2772-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2772-1-0x0000000001180000-0x0000000001312000-memory.dmp

Filesize
1.6MB

Download
memory/2772-2-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2772-5-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download