stealerium | 635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf

General

Target

635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Size

710.8MB
MD5

f8542e3fd05d0ccdad3a7a56fa9dc675
SHA1

a50107bfa0429e3c8f9e80710057e8f1b620a3d5
SHA256

635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf
SHA512

135b9472e053a24245191969d44f2c835703f8351357172755f4a34989ce1a211adfcd79700677cc2a3a23dcd8927b2e9e3db4c4a11130bab11f1a71566acf44
SSDEEP

24576:5i2Q9NXw2/wPOjdGxY2rqkqjVnlqud+/2P+A+ZecdyFoBkkAnexMrdgLc:oTq24GjdGSiqkqXfd+/9AqYanieKd

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1100795014843469874/QQny5mMq7HU-Eb1qYkLt5wXKkY7L_8SqtGW55nyYB2tpw-qDUtmemjTcPU9kn2V86aQN

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Stealerium family
stealerium

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

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

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1900	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2828	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Token: SeDebugPrivilege	2828	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2832	2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 2544 wrote to memory of 2832	2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 2544 wrote to memory of 2832	2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 2544 wrote to memory of 2832	2544	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 2832 wrote to memory of 2456	2832	cmd.exe	34
PID 2832 wrote to memory of 2456	2832	cmd.exe	34
PID 2832 wrote to memory of 2456	2832	cmd.exe	34
PID 2832 wrote to memory of 2456	2832	cmd.exe	34
PID 2832 wrote to memory of 2828	2832	cmd.exe	35
PID 2832 wrote to memory of 2828	2832	cmd.exe	35
PID 2832 wrote to memory of 2828	2832	cmd.exe	35
PID 2832 wrote to memory of 2828	2832	cmd.exe	35
PID 2832 wrote to memory of 1900	2832	cmd.exe	36
PID 2832 wrote to memory of 1900	2832	cmd.exe	36
PID 2832 wrote to memory of 1900	2832	cmd.exe	36
PID 2832 wrote to memory of 1900	2832	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
"C:\Users\Admin\AppData\Local\Temp\635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpEF6E.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2832
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2456
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2544
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2828
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEF6E.tmp.bat

Filesize
57B

MD5
e141ba57452d2272dabdfbe4470fbce7

SHA1
0e1db0293dad35a9112c8c98b223352fa059ed98

SHA256
a12830ec4cc244236e7bb88dd102d2708242ac550851f36b82ab99b5ce345632

SHA512
f2947294101b94a030579284804a321eff1c8f985038d79f66277b170053b302883737416d1ca6e2fe03a733b547687f29902bae5a79add4ed4bf40b0e8a4dd3

Download Submit
memory/2544-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/2544-1-0x00000000012A0000-0x0000000001432000-memory.dmp

Filesize
1.6MB

Download
memory/2544-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2544-9-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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