stealc | 9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44

General

Target

9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe
Size

2.8MB
MD5

3180b05dba650adfa0e6bb019e5c6e78
SHA1

550e74a6988514685ecc7440d36e954687688173
SHA256

9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44
SHA512

2a2518559dfdb87811db878494d9635c5edcb5669d50b2c79ab1d91f2b841070773be36697f359eaf31e67ecea619a1e0b4bfa4e17a793c6b679ec8efc0b8162
SSDEEP

49152:nKrraR2Lv+dobOhTUA23R+uUtvMgVRfOwMom7nUTrlN:nKrraR2z+dobOhTUA0R+jMgVRA7E

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__	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.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	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Wine	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.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
1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2508	1908	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	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.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	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe
1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2508	1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe	32
PID 1908 wrote to memory of 2508	1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe	32
PID 1908 wrote to memory of 2508	1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe	32
PID 1908 wrote to memory of 2508	1908	9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe	32

C:\Users\Admin\AppData\Local\Temp\9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.exe
"C:\Users\Admin\AppData\Local\Temp\9ef14403d9c0edf30e658df87895f20f07358baeb29dd3c1d564fd4429decd44.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:1908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 924
  2⤵
  - Program crash
  PID:2508

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1908-0-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-1-0x00000000772D0000-0x00000000772D2000-memory.dmp

Filesize
8KB

Download
memory/1908-2-0x0000000000B11000-0x0000000000B28000-memory.dmp

Filesize
92KB

Download
memory/1908-3-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-4-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-5-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-6-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-7-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-8-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-9-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-10-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download
memory/1908-11-0x0000000000B10000-0x000000000100B000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads