stealc | 6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d

Analysis

max time kernel
95s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 02:29

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General

Target

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe
Size

1.7MB
MD5

e0205bfeadfb01c33d5a13ede54fbf10
SHA1

3ef5bc11132a9dd29a98e80db03f4c19494745b9
SHA256

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d
SHA512

1d5d157fc2078b2db86e421057a52fc47cfe424fbedf6eec6865ab84385bfb8c7ba454f8e5a9d58712cf1c1346f633530649742e72e2cb576a14164af29f289c
SSDEEP

49152:2PNQ5shN9Z7wV3ZTcAPAPijxCOwQBukm:2PWGhjZ7sJPP5jxCODUkm

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.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

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.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

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

pid process

780 6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.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

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

pid	process
780	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe
780	6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe

C:\Users\Admin\AppData\Local\Temp\6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.exe
"C:\Users\Admin\AppData\Local\Temp\6b6a89b114bb94bef88235b97bfe7dc73933be77b833cb7fc522def6f37a415d.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:780

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

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Downloads

memory/780-0-0x00000000004E0000-0x0000000000B7E000-memory.dmp

Filesize
6.6MB

Download
memory/780-1-0x00000000777E4000-0x00000000777E6000-memory.dmp

Filesize
8KB

Download
memory/780-2-0x00000000004E1000-0x00000000004F8000-memory.dmp

Filesize
92KB

Download
memory/780-3-0x00000000004E0000-0x0000000000B7E000-memory.dmp

Filesize
6.6MB

Download
memory/780-5-0x00000000004E0000-0x0000000000B7E000-memory.dmp

Filesize
6.6MB

Download