stealc | be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b

General

Target

be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe
Size

1.7MB
MD5

592a90554eee35da6011c62fa4872062
SHA1

feb4ac8ddf58e5459d79610aea5db438dd9bc454
SHA256

be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b
SHA512

3ffb2f7bd5a429e88b43f189dff148e84d30c7bf0e4f439eff0619cd4c33fd78e52609e436c05d00988b0eb5aa403938a603012964548e43e2cff6673b03b9bb
SSDEEP

49152:Fe7qaHI5h3kG6VsDkn0N2hGmjAUWd2tKTRLcUUkhFG:kWawCQ40UGuAUWd2tKTDxrG

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__	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.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	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.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
1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2184	1920	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	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.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	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe
1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 2184	1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe	32
PID 1920 wrote to memory of 2184	1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe	32
PID 1920 wrote to memory of 2184	1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe	32
PID 1920 wrote to memory of 2184	1920	be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe	32

C:\Users\Admin\AppData\Local\Temp\be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.exe
"C:\Users\Admin\AppData\Local\Temp\be8a46a2048e3b38f35321b3ef05690a15153b452ca5cc9f7963c8cd1d1dfe2b.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:1920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 920
  2⤵
  - Program crash
  PID:2184

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/1920-0-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-1-0x0000000077680000-0x0000000077682000-memory.dmp

Filesize
8KB

Download
memory/1920-2-0x0000000000091000-0x00000000000A8000-memory.dmp

Filesize
92KB

Download
memory/1920-3-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-4-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-5-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-6-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-7-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-8-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-9-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-10-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download
memory/1920-11-0x0000000000090000-0x000000000071A000-memory.dmp

Filesize
6.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads