stealc | 22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087

General

Target

22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe
Size

5.0MB
MD5

488164e9714fe64c05540590ffe28999
SHA1

9c35653fcf4178c463647f1d4dc3cc5a9c129487
SHA256

22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087
SHA512

ef8eb1f2efba519bc4204664747009ccbdc9c0b9413db4ab234032af767a5f2ab799f76707898a91079fd70d1d29b4d4805065011c6da3b7a81ce32b299a6b5a
SSDEEP

24576:i2NPzsPBpA5Dl5pzuDpdndfbFSGmkkYJdIHFKSmEApnBF6l3cEugbu6T1/bknsnL:igg6hbupdn2zkkY4lccbNfnPr8XYw

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__	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.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\VideoBiosVersion	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.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
2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1672	2792	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	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.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	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe
2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 1672	2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe	31
PID 2792 wrote to memory of 1672	2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe	31
PID 2792 wrote to memory of 1672	2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe	31
PID 2792 wrote to memory of 1672	2792	22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe	31

C:\Users\Admin\AppData\Local\Temp\22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.exe
"C:\Users\Admin\AppData\Local\Temp\22cbcc0e6cb62586554aeab4535bce889051dd957114ce9260cb3d94a2e31087.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:2792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 928
  2⤵
  - Program crash
  PID:1672

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/2792-0-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-1-0x0000000077660000-0x0000000077662000-memory.dmp

Filesize
8KB

Download
memory/2792-2-0x0000000000991000-0x0000000000BDA000-memory.dmp

Filesize
2.3MB

Download
memory/2792-3-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-4-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-5-0x0000000000991000-0x0000000000BDA000-memory.dmp

Filesize
2.3MB

Download
memory/2792-6-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-7-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-8-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-9-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-10-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-11-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-12-0x0000000000990000-0x0000000000E8F000-memory.dmp

Filesize
5.0MB

Download
memory/2792-13-0x0000000000991000-0x0000000000BDA000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads