stealerium | 5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542

General

Target

Z-Launcher-GPS5.exe
Size

1.6MB
MD5

e6db71cc80920480219f16c0c54013c7
SHA1

4c7370868e5187d5d017c69df552dd809b76c1a2
SHA256

5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542
SHA512

0b229b4b3e2cac3cd25748af0cbcc37840825b2d4f9d098e97e183f2f763fe240d0df89ef98a8c19c32e4cee61145d9e6f478598b6598384b6035ab714ebce55
SSDEEP

49152:TkTq24GjdGSiqkqXfd+/9AqYanieKdsfM:T1EjdGSiqkqXf0FLYWC

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1279142597218013264/8mlljrcp8pu-na1Kxr-pwaQv-IeIN4qXz3iwqKTXrY-DPCA89wjqOAQeRKn7qMqu3BR6

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

flow	ioc
2	discord.com
1	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Z-Launcher-GPS5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3640	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
292	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
752	Z-Launcher-GPS5.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	752	Z-Launcher-GPS5.exe
Token: SeDebugPrivilege	292	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 4108	752	Z-Launcher-GPS5.exe	73
PID 752 wrote to memory of 4108	752	Z-Launcher-GPS5.exe	73
PID 752 wrote to memory of 4108	752	Z-Launcher-GPS5.exe	73
PID 4108 wrote to memory of 984	4108	cmd.exe	75
PID 4108 wrote to memory of 984	4108	cmd.exe	75
PID 4108 wrote to memory of 984	4108	cmd.exe	75
PID 4108 wrote to memory of 292	4108	cmd.exe	76
PID 4108 wrote to memory of 292	4108	cmd.exe	76
PID 4108 wrote to memory of 292	4108	cmd.exe	76
PID 4108 wrote to memory of 3640	4108	cmd.exe	77
PID 4108 wrote to memory of 3640	4108	cmd.exe	77
PID 4108 wrote to memory of 3640	4108	cmd.exe	77

C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe
"C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp9700.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4108
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:984
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 752
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:292
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3640

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9700.tmp.bat

Filesize
56B

MD5
4fc7a3ed7b64a70e7349a6c0e7fa46e7

SHA1
b4a5657cd0fa90b5736492238f2b5c2d371ac3c2

SHA256
04bcfe5fc5a36289cee1f3bb4b0f76945ebabc46bae747a603d9f773e04b7855

SHA512
3ccc7b26633cf8014c4e0c68a335249f75432e601cea30ceaaa5c24c519df9251e5f67d1798800777c759533a3ac1ead595bf9bf6e0bcd73f6cf1bd4d3307be8

Download Submit
memory/752-0-0x00000000733CE000-0x00000000733CF000-memory.dmp

Filesize
4KB

Download
memory/752-1-0x0000000000140000-0x00000000002DC000-memory.dmp

Filesize
1.6MB

Download
memory/752-2-0x0000000004B40000-0x0000000004BA6000-memory.dmp

Filesize
408KB

Download
memory/752-3-0x00000000733C0000-0x0000000073AAE000-memory.dmp

Filesize
6.9MB

Download
memory/752-7-0x00000000733CE000-0x00000000733CF000-memory.dmp

Filesize
4KB

Download
memory/752-8-0x00000000733C0000-0x0000000073AAE000-memory.dmp

Filesize
6.9MB

Download
memory/752-9-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/752-10-0x0000000004B10000-0x0000000004B36000-memory.dmp

Filesize
152KB

Download
memory/752-11-0x00000000025D0000-0x00000000025D8000-memory.dmp

Filesize
32KB

Download
memory/752-16-0x00000000733C0000-0x0000000073AAE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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