stealerium | cf799248f39973dd7dafea05204243991d763dddc77959c60c80096532359eff

Resubmissions

03-09-2024 13:59

240903-ran7waydlq 10

03-09-2024 01:28

240903-bvtp4atajj 10

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 13:59

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General

Target

c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe
Size

1.6MB
MD5

96c62ca985ed966d7c6d274caa5bb41a
SHA1

97842b7b0d381ae027f8a92787ffff84eca2a698
SHA256

c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa
SHA512

66e086fdd0f39f0f166c3d9253805de4095e95b47eee38393a113e2279d4f90c13c8584f3827f45c85b2bca71a9119a48dca6f59d006d4015e9c2f6dafedcde5
SSDEEP

49152:LkTq24GjdGSiqkqXfd+/9AqYanieKdsG:L1EjdGSiqkqXf0FLYW

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1216977598710812722/eEJiGM8jVlIOF9WMbphPIuNdIEZhhSSu4T_LZSo0WE_S2YnMqS8z5lz1bmAKfC9V08aI

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer 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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.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	chcp.com
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	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2316	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
228	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2444	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2444	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe
Token: SeDebugPrivilege	228	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 640	2444	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe	90
PID 2444 wrote to memory of 640	2444	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe	90
PID 2444 wrote to memory of 640	2444	c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe	90
PID 640 wrote to memory of 2464	640	cmd.exe	92
PID 640 wrote to memory of 2464	640	cmd.exe	92
PID 640 wrote to memory of 2464	640	cmd.exe	92
PID 640 wrote to memory of 228	640	cmd.exe	93
PID 640 wrote to memory of 228	640	cmd.exe	93
PID 640 wrote to memory of 228	640	cmd.exe	93
PID 640 wrote to memory of 2316	640	cmd.exe	94
PID 640 wrote to memory of 2316	640	cmd.exe	94
PID 640 wrote to memory of 2316	640	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe
"C:\Users\Admin\AppData\Local\Temp\c1cf23cf49d7406b02b538db9d9636209c706d3f2fd9719bfda55aef5f65cbaa.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2464
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2444
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:228
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp.bat

Filesize
57B

MD5
c034df2a7f59eb18ed91797320398249

SHA1
25acbfcf0e23688207f8ce11537a020ed39ed41c

SHA256
94e848f63b0525e7d4283636c63d0c91ed465c59b2bff6f8347320e782e2b4e6

SHA512
eddd307f380fa2a85ddb90739de97a7da9f4bdaab1f227c7bf74929d9f734979f4c5a27241d51c062d929ac4b88b55acc8fde90c85cb60327867a420db26dc37

Download Submit
memory/2444-0-0x000000007523E000-0x000000007523F000-memory.dmp

Filesize
4KB

Download
memory/2444-1-0x0000000000FC0000-0x0000000001152000-memory.dmp

Filesize
1.6MB

Download
memory/2444-2-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/2444-3-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/2444-4-0x0000000006070000-0x0000000006102000-memory.dmp

Filesize
584KB

Download
memory/2444-5-0x0000000006100000-0x0000000006126000-memory.dmp

Filesize
152KB

Download
memory/2444-6-0x0000000006130000-0x0000000006138000-memory.dmp

Filesize
32KB

Download
memory/2444-9-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download