stealc | 4d6a6179b0f6c692352da0dc3341bee129f5bd3ac085220c8caad6a72ac5484a

Analysis

max time kernel
94s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 01:01

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General

Target

f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe
Size

1.7MB
MD5

1d1ca9438cb800e982544370f38762f8
SHA1

12c7ea625d7af01fea395529f894a821229aeade
SHA256

f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162
SHA512

438651a8f81aff38ad77ebb44519f8907be1196a1ce26624a2b672563485996e26a21f3448b11c3fe9b9946c8eda3d92d8618df3ecd7e1ef790c310964c75bdd
SSDEEP

49152:ZubnkRA6mQV2g89P792w7KEjt5NWD/obJN:ZuLkG6NV2T7VvNIQbn

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.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	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.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-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2024	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.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	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2024	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe
2024	f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe

C:\Users\Admin\AppData\Local\Temp\f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.exe
"C:\Users\Admin\AppData\Local\Temp\f6b9748417a17234c49842dd3327f0c2bdd840448a2d92e5246fa5c87dd41162.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:2024

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/2024-0-0x00000000003A0000-0x0000000000A46000-memory.dmp

Filesize
6.6MB

Download
memory/2024-1-0x00000000778D4000-0x00000000778D6000-memory.dmp

Filesize
8KB

Download
memory/2024-2-0x00000000003A1000-0x00000000003B8000-memory.dmp

Filesize
92KB

Download
memory/2024-3-0x00000000003A0000-0x0000000000A46000-memory.dmp

Filesize
6.6MB

Download
memory/2024-5-0x00000000003A0000-0x0000000000A46000-memory.dmp

Filesize
6.6MB

Download