stealc | 6509d2ffd8bc3662dfe134ae1b1e811bda35c68f51f6a40eee823fce9ef960e3

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 08:15

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General

Target

random(6).exe
Size

4.9MB
MD5

14fc1658de54a19670851a44afc48abc
SHA1

951ba600309ff863c3ec177ba78af16c288f5729
SHA256

6509d2ffd8bc3662dfe134ae1b1e811bda35c68f51f6a40eee823fce9ef960e3
SHA512

77d96df4e0239fc55ab61e106e17d57ed699cc040daf652e8673bbc1dbed20e4c5502ad05e7f79460c6613831280f9c1aa0688419c9451c1ecba9f1f631509f9
SSDEEP

49152:uMegDAFfdiSkW9jEiKG4xidWwqnSYQlE9nC6YIogBic:8iAFfcSkW9jEXG4EcnAgogB

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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__	random(6).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	random(6).exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	random(6).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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	random(6).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
2728	random(6).exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
852	2728	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	random(6).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	random(6).exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	random(6).exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2728	random(6).exe
2728	random(6).exe
2728	random(6).exe
2728	random(6).exe

C:\Users\Admin\AppData\Local\Temp\random(6).exe
"C:\Users\Admin\AppData\Local\Temp\random(6).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:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 1484
  2⤵
  - Program crash
  PID:852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2728 -ip 2728
1⤵
PID:4044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2728-0-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-1-0x00000000775E4000-0x00000000775E6000-memory.dmp

Filesize
8KB

Download
memory/2728-2-0x0000000000391000-0x00000000005DA000-memory.dmp

Filesize
2.3MB

Download
memory/2728-3-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-4-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-5-0x0000000000391000-0x00000000005DA000-memory.dmp

Filesize
2.3MB

Download
memory/2728-6-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-7-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-8-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-9-0x0000000000390000-0x0000000000883000-memory.dmp

Filesize
4.9MB

Download
memory/2728-10-0x0000000000391000-0x00000000005DA000-memory.dmp

Filesize
2.3MB

Download