stealerium | 6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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
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-1-5-21-3808065738-1666277613-1125846146-1000\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

1068 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2828 taskkill.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

stub.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 3352 stub.exe
Token: SeDebugPrivilege 2828 taskkill.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	stub.exe

pid	process
1068	timeout.exe

pid	process
2828	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	3352	stub.exe
Token: SeDebugPrivilege	2828	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

stub.execmd.exe

description	pid	process	target process
PID 3352 wrote to memory of 1972	3352	stub.exe	cmd.exe
PID 3352 wrote to memory of 1972	3352	stub.exe	cmd.exe
PID 3352 wrote to memory of 1972	3352	stub.exe	cmd.exe
PID 1972 wrote to memory of 948	1972	cmd.exe	chcp.com
PID 1972 wrote to memory of 948	1972	cmd.exe	chcp.com
PID 1972 wrote to memory of 948	1972	cmd.exe	chcp.com
PID 1972 wrote to memory of 2828	1972	cmd.exe	taskkill.exe
PID 1972 wrote to memory of 2828	1972	cmd.exe	taskkill.exe
PID 1972 wrote to memory of 2828	1972	cmd.exe	taskkill.exe
PID 1972 wrote to memory of 1068	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1068	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1068	1972	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3352

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp15B6.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:948

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 3352
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2828

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:1068

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3752 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:5096

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\tmp15B6.tmp.bat
Filesize
57B

MD5
6a487d2d6bc3e05cc0336b25d92c9d13

SHA1
d8e50f852d09c80611dc9ce121102d44f9a131b3

SHA256
f95666fdea3a60658fe16de0c5cdb7bf3b4ddecaa2ec35db9b4739ab16da1ba5

SHA512
cebf2c67f480cb7856e2323faa1a44d0a4c8b1ca70d3a3690586f0f220369be53c617a584c16e14c35c89f3dddf9067dffdc520d8ec094a57650a32230362bfb

Download Submit
memory/3352-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/3352-1-0x0000000000F20000-0x00000000010B2000-memory.dmp

Filesize
1.6MB

Download
memory/3352-2-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/3352-3-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/3352-6-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download