stealerium | 29fe039e2f044b0834689387f7c39c3c1974cbd6a9943f07425c692cbb3049b9

General

Target

Illegal_Services.exe
Size

1.6MB
MD5

4a26c0872b72c9c1380bef1c2969c9c2
SHA1

a1937fee7f4503b0deb87c00aa4184802b073edc
SHA256

aced8dfcc6ca6b032fa8d2f0be09fcd32400083ff27a74e6cabaf4bd71c6d2b0
SHA512

ca6017f47f0260e5b60d9bcc0c6c934dc5749e00d041dec5bd5e3a1657537d13bbd5949d29e33c287b66c896f09aac178f7f1f05552d9303fc3b03a87c6386e4
SSDEEP

24576:Gi2Q9NXw2/wPOjdGxY2rqkqjVnlqud+/2P+A+ZecdyFoBkkAnexMrdgL7Z:BTq24GjdGSiqkqXfd+/9AqYanieKd

Score

10^/10

stealerium stealer

Malware Config

Extracted

Family

stealerium

C2

1

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

4 discord.com
5 discord.com
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

2568 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2684 taskkill.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Illegal_Services.exe

pid process

2300 Illegal_Services.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Illegal_Services.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 2300 Illegal_Services.exe
Token: SeDebugPrivilege 2684 taskkill.exe

flow	ioc
4	discord.com
5	discord.com

pid	process
2568	timeout.exe

pid	process
2684	taskkill.exe

pid	process
2300	Illegal_Services.exe

description	pid	process
Token: SeDebugPrivilege	2300	Illegal_Services.exe
Token: SeDebugPrivilege	2684	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Illegal_Services.execmd.exe

description	pid	process	target process
PID 2300 wrote to memory of 2352	2300	Illegal_Services.exe	cmd.exe
PID 2300 wrote to memory of 2352	2300	Illegal_Services.exe	cmd.exe
PID 2300 wrote to memory of 2352	2300	Illegal_Services.exe	cmd.exe
PID 2300 wrote to memory of 2352	2300	Illegal_Services.exe	cmd.exe
PID 2352 wrote to memory of 2280	2352	cmd.exe	chcp.com
PID 2352 wrote to memory of 2280	2352	cmd.exe	chcp.com
PID 2352 wrote to memory of 2280	2352	cmd.exe	chcp.com
PID 2352 wrote to memory of 2280	2352	cmd.exe	chcp.com
PID 2352 wrote to memory of 2684	2352	cmd.exe	taskkill.exe
PID 2352 wrote to memory of 2684	2352	cmd.exe	taskkill.exe
PID 2352 wrote to memory of 2684	2352	cmd.exe	taskkill.exe
PID 2352 wrote to memory of 2684	2352	cmd.exe	taskkill.exe
PID 2352 wrote to memory of 2568	2352	cmd.exe	timeout.exe
PID 2352 wrote to memory of 2568	2352	cmd.exe	timeout.exe
PID 2352 wrote to memory of 2568	2352	cmd.exe	timeout.exe
PID 2352 wrote to memory of 2568	2352	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\Illegal_Services.exe
"C:\Users\Admin\AppData\Local\Temp\Illegal_Services.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp462C.tmp.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:2352

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:2280

C:\Windows\SysWOW64\taskkill.exe
TaskKill /F /IM 2300
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\SysWOW64\timeout.exe
Timeout /T 2 /Nobreak
3⤵
- Delays execution with timeout.exe
PID:2568

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\Neues Textdokument.txt
1⤵
PID:2680

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar45AF.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp462C.tmp.bat
Filesize
57B

MD5
86b7c9ba3e08900ebbbc838d49c134d5

SHA1
cf966b8b5043d3a1f2524ca250f4a614a26b933f

SHA256
cd45f1d3335977f01a12a5927a0f0f8fcfb65de4c5cc3d96a8846faa05bd1aae

SHA512
ab68ae491015a45c79ac4edf056f933b58073fe8b3fb38e2b7667287e86f09b549c35a289fcb2fdd4848431db3ab0ce7a74ab7b53ccedbbd571eabad17586dab

Download Submit
memory/2300-0-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/2300-1-0x0000000000FB0000-0x0000000001146000-memory.dmp

Filesize
1.6MB

Download
memory/2300-2-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download
memory/2300-5-0x0000000000F00000-0x0000000000F92000-memory.dmp

Filesize
584KB

Download
memory/2300-6-0x0000000000550000-0x0000000000576000-memory.dmp

Filesize
152KB

Download
memory/2300-7-0x0000000000680000-0x0000000000688000-memory.dmp

Filesize
32KB

Download
memory/2300-49-0x0000000074990000-0x000000007507E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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