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

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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2196	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1356	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Token: SeDebugPrivilege	1356	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2776	1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 1796 wrote to memory of 2776	1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 1796 wrote to memory of 2776	1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 1796 wrote to memory of 2776	1796	JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	32
PID 2776 wrote to memory of 2812	2776	cmd.exe	34
PID 2776 wrote to memory of 2812	2776	cmd.exe	34
PID 2776 wrote to memory of 2812	2776	cmd.exe	34
PID 2776 wrote to memory of 2812	2776	cmd.exe	34
PID 2776 wrote to memory of 1356	2776	cmd.exe	35
PID 2776 wrote to memory of 1356	2776	cmd.exe	35
PID 2776 wrote to memory of 1356	2776	cmd.exe	35
PID 2776 wrote to memory of 1356	2776	cmd.exe	35
PID 2776 wrote to memory of 2196	2776	cmd.exe	36
PID 2776 wrote to memory of 2196	2776	cmd.exe	36
PID 2776 wrote to memory of 2196	2776	cmd.exe	36
PID 2776 wrote to memory of 2196	2776	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp1536.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2812
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 1796
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1356
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2196

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\tmp1536.tmp.bat

Filesize
57B

MD5
59bf1cb806323d85a036d38557af3032

SHA1
217b1b84153d9acab0e8bfad15c9f2dc99c504d2

SHA256
b058d35af5943b7cbef94a69bbff11cca6245b6d75ab7357abd588ffc567dd6d

SHA512
95ded1261327dcf9264668ec9df5265afa48667b8aeadf9022e5df15b452b097339aac159d62d7f5074d0b84345e093b6605007aae5721fb6fb0f7e34c4faa41

Download Submit
memory/1796-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/1796-1-0x0000000000040000-0x00000000001D2000-memory.dmp

Filesize
1.6MB

Download
memory/1796-2-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/1796-5-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/1796-10-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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