stealc | 06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b

General

Target

06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe
Size

2.7MB
MD5

198c34c639aabe94b184910b7c000d49
SHA1

74406b01f739c9442ba085cc46dcfd85ae661b1d
SHA256

06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b
SHA512

df8caf3e379c4507efef928031ccf1e94bbd75ddf1e1f1e7d9e86dadfd6a6e15cbaf59f0c5847a69ef2a8a32ed5b58a9d5b01668aaf899889c1fd6b10041e7bd
SSDEEP

49152:4jIb6b6i9KvgjHGk/QyGi7MldPqbe53I1f995hp2K0E:4jIb6b6i9KvgjGk/MXFcV952K0E

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__	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.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	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.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
1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2636	1632	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	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.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	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe
1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2636	1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe	32
PID 1632 wrote to memory of 2636	1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe	32
PID 1632 wrote to memory of 2636	1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe	32
PID 1632 wrote to memory of 2636	1632	06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe	32

C:\Users\Admin\AppData\Local\Temp\06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.exe
"C:\Users\Admin\AppData\Local\Temp\06719723b85c40ec97d49a498ae0eccc537df6f2663eabbb58cb2bfd52f1503b.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:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 928
  2⤵
  - Program crash
  PID:2636

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/1632-0-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-1-0x0000000077000000-0x0000000077002000-memory.dmp

Filesize
8KB

Download
memory/1632-2-0x0000000001291000-0x00000000012A8000-memory.dmp

Filesize
92KB

Download
memory/1632-3-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-4-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-5-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-6-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-7-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-8-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-9-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-10-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download
memory/1632-11-0x0000000001290000-0x0000000001781000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads