stealerium | 635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf

General

Target

JaffaCakes118_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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

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

Web Service

T1102

flow	ioc
15	discord.com
16	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
816	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2072	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1804	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1804	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Token: SeDebugPrivilege	2072	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 4828	1804	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	94
PID 1804 wrote to memory of 4828	1804	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	94
PID 1804 wrote to memory of 4828	1804	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	94
PID 4828 wrote to memory of 1336	4828	cmd.exe	96
PID 4828 wrote to memory of 1336	4828	cmd.exe	96
PID 4828 wrote to memory of 1336	4828	cmd.exe	96
PID 4828 wrote to memory of 2072	4828	cmd.exe	97
PID 4828 wrote to memory of 2072	4828	cmd.exe	97
PID 4828 wrote to memory of 2072	4828	cmd.exe	97
PID 4828 wrote to memory of 816	4828	cmd.exe	98
PID 4828 wrote to memory of 816	4828	cmd.exe	98
PID 4828 wrote to memory of 816	4828	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpE7B0.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4828
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1336
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 1804
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2072
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\tmpE7B0.tmp.bat

Filesize
57B

MD5
53364ab2e4f9d4d2479294e8024bcdbd

SHA1
ee97a06756eec4f9276ac7de1ee74c01933521b4

SHA256
c2164e07e81d773b9a1053b9bd3c0aa81112493e7aa8e0c260b28f80ed7672d4

SHA512
f292be80be9c9139f378e0724a8a0ea026339772d7e32d39835eaaf6ff530746bef420500b3e43471adb5ce94dbc5d17dcab30b784a0715fe973a7f2b80a15ce

Download Submit
memory/1804-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/1804-1-0x0000000000AB0000-0x0000000000C42000-memory.dmp

Filesize
1.6MB

Download
memory/1804-2-0x0000000005600000-0x0000000005666000-memory.dmp

Filesize
408KB

Download
memory/1804-3-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/1804-10-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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