stealc | 517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defae

General

Target

517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
Size

1.8MB
MD5

c3d1a295a641ab8612d6c668d14ce510
SHA1

025b8c1f7c15a8b5f391013db01eeae18a7d14ce
SHA256

517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defae
SHA512

e6dcab22cafa2b5a2e9f99876f640e6a5f3a5eb2b017e7b3dc8cfe7e1858ae2152dfe46ccbaf4b0a0e1586c815060a6ae2bce908653e6472fab8b1e33d3fa925
SSDEEP

49152:gpmFGY3ravO5n/dtOJPFfKswi4J+cjYJyR:gpmFGY7llkVQ8CYJ2

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__	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.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	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.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
4456	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1556	4456	WerFault.exe	83

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	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.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	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4456	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
4456	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
4456	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
4456	517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe

C:\Users\Admin\AppData\Local\Temp\517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.exe
"C:\Users\Admin\AppData\Local\Temp\517e35b1e95c3abc9096e5cb9821bdd4c494f7d5bb38f5ca96cd4af6712defaeN.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
PID:4456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4456 -s 1444
  2⤵
  - Program crash
  PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 212 -p 4456 -ip 4456
1⤵
PID:976

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/4456-0-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-1-0x0000000077AF4000-0x0000000077AF6000-memory.dmp

Filesize
8KB

Download
memory/4456-2-0x0000000000831000-0x0000000000848000-memory.dmp

Filesize
92KB

Download
memory/4456-3-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-4-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-5-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-6-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-7-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download
memory/4456-8-0x0000000000830000-0x0000000000EDA000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads