stealc | c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca

General

Target

c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe
Size

2.8MB
MD5

311bc9ee5151134ca3add8e9aa79cdce
SHA1

68d1de56f8e82e5e5f1ed3c1bc9ef3f1032c177d
SHA256

c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca
SHA512

9834ecda8cd9dc0afaaa81e6700a267df765171b449b3e2f1dae1c95b646f8897b8d9afcd42b716b6f4aaaade7234620d46ec9d87515786a312f966a13c9f1ab
SSDEEP

49152:/vW/DSM0BGPbnGyOiQk4BLK96pAp/I/GK05J1TOW8f:/vaDSM+GPbnGug28Ap/IuR5J1tY

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3036	2864	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe
2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 3036	2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe	31
PID 2864 wrote to memory of 3036	2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe	31
PID 2864 wrote to memory of 3036	2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe	31
PID 2864 wrote to memory of 3036	2864	c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe	31

C:\Users\Admin\AppData\Local\Temp\c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe
"C:\Users\Admin\AppData\Local\Temp\c229461bbc36e4cb5c4b0a5cfb6679d206310e97b7072cc223c933c8a24dd0ca.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2864 -s 432
  2⤵
  - Program crash
  PID:3036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2864-0-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-1-0x0000000077DC0000-0x0000000077DC2000-memory.dmp

Filesize
8KB

Download
memory/2864-2-0x0000000000291000-0x00000000002A8000-memory.dmp

Filesize
92KB

Download
memory/2864-3-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-4-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-5-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-6-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-7-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-8-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-9-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-10-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download
memory/2864-12-0x0000000000290000-0x000000000078B000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads