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

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

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

Web Service

T1102

flow	ioc
14	discord.com
15	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	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.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
1236	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1064	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3896	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3896	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
Token: SeDebugPrivilege	1064	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 4624	3896	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	92
PID 3896 wrote to memory of 4624	3896	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	92
PID 3896 wrote to memory of 4624	3896	635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe	92
PID 4624 wrote to memory of 2184	4624	cmd.exe	94
PID 4624 wrote to memory of 2184	4624	cmd.exe	94
PID 4624 wrote to memory of 2184	4624	cmd.exe	94
PID 4624 wrote to memory of 1064	4624	cmd.exe	95
PID 4624 wrote to memory of 1064	4624	cmd.exe	95
PID 4624 wrote to memory of 1064	4624	cmd.exe	95
PID 4624 wrote to memory of 1236	4624	cmd.exe	96
PID 4624 wrote to memory of 1236	4624	cmd.exe	96
PID 4624 wrote to memory of 1236	4624	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\635d73bffa652845629082094777732d3f37482ce2d24e72f15cd07977c49bbf.exe
"C:\Users\Admin\AppData\Local\Temp\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:3896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpA2A8.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4624
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2184
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3896
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1064
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1236

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA2A8.tmp.bat

Filesize
57B

MD5
e869859454374f45842ee933410f0da9

SHA1
db4b60029342c3a35584eed13081c46c29c05385

SHA256
1f91d951f830b71e64bd22def2db9fd852b51799a71fffed6986488ad1d1afdc

SHA512
94d7a3ff59d97a569c1b777079a946c8ee301b6f9d488a05ebd1d66fe6d8cf47546402de2f81793e314933d599d931a7481af7e10040edf6aa94208400639ba6

Download Submit
memory/3896-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/3896-1-0x0000000000C40000-0x0000000000DD2000-memory.dmp

Filesize
1.6MB

Download
memory/3896-2-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/3896-3-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/3896-10-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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