stealc | 6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc

Analysis

max time kernel
95s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 11:53

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General

Target

6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe
Size

1.7MB
MD5

ff189e04d87aece68a3d94be0e58800d
SHA1

f3e858591cc7aa05a1408f6e41393b29d8f0a8db
SHA256

6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc
SHA512

18477a551a51ffe450ab0a4739d7cb8b0b582c97c352ee4cd6dcd38947867467c0381745c56e6dc8fa4272eebd97ababfdef5983aae56839dd4e403b18dd02b0
SSDEEP

49152:Zzi/QlN7woqvThwNUT39Gk+uaCx9piOLdu:ZzA5o4hOo/LLQ

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__	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.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	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1664	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe

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	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1664	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe
1664	6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe

C:\Users\Admin\AppData\Local\Temp\6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.exe
"C:\Users\Admin\AppData\Local\Temp\6c13eef11dd3b4010441c012eb80409ae49059bd73bd28b41980cb62ceb7d6dc.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
- Suspicious behavior: EnumeratesProcesses
PID:1664

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/1664-0-0x0000000000D30000-0x00000000013BA000-memory.dmp

Filesize
6.5MB

Download
memory/1664-1-0x00000000776E4000-0x00000000776E6000-memory.dmp

Filesize
8KB

Download
memory/1664-2-0x0000000000D31000-0x0000000000D48000-memory.dmp

Filesize
92KB

Download
memory/1664-3-0x0000000000D30000-0x00000000013BA000-memory.dmp

Filesize
6.5MB

Download
memory/1664-4-0x0000000000D30000-0x00000000013BA000-memory.dmp

Filesize
6.5MB

Download