stealc | 45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5

General

Target

45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe
Size

2.8MB
MD5

4b15ec703f2ecacc825f842eee718652
SHA1

c65b5b23075058412300a18485f46e8b5ffd3145
SHA256

45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5
SHA512

dc824e5ca55b022b6ed3646fcc39ba64a90f799c63f8f39639974dd4505ab62aa04d787a4a1089f7d9d60a10ce925af74bcf7bab36c62e2249304a099e25e238
SSDEEP

49152:VOxi6K9A1ws2clNDs7ruvaRIKRXwIVsmWS43jWDvPS:V16K9ns2ONDsXuSnqmazWTP

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__	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.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	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.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
1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
784	1744	WerFault.exe	28

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	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.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	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe
1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 784	1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe	30
PID 1744 wrote to memory of 784	1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe	30
PID 1744 wrote to memory of 784	1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe	30
PID 1744 wrote to memory of 784	1744	45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe	30

C:\Users\Admin\AppData\Local\Temp\45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.exe
"C:\Users\Admin\AppData\Local\Temp\45412de2869fd156e91e372335f89819dd2ccb1a9f4de0772aa69f73f1889dd5.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:1744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 924
  2⤵
  - Program crash
  PID:784

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/1744-0-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-1-0x0000000077C80000-0x0000000077C82000-memory.dmp

Filesize
8KB

Download
memory/1744-3-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-2-0x00000000012A1000-0x00000000012B8000-memory.dmp

Filesize
92KB

Download
memory/1744-4-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-5-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-6-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-7-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-8-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-9-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download
memory/1744-10-0x00000000012A0000-0x000000000179E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads