stealc | 90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd

Analysis

max time kernel
96s
max time network
148s
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 02:40

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General

Target

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe
Size

1.8MB
MD5

e5a48f23e7b32f452f9bf2e6bf42094c
SHA1

4f95895d7a641793c3e603847c06ffd51fb29940
SHA256

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd
SHA512

3ad71818ffa0544e8c7e302c49a51b7e58b42543a0640a588e448d4d1ebb9e4b880e1869a634b7e66a2d11849eb2c68672b575f7b6386393bc02ff052293ded4
SSDEEP

49152:LLrjKJvZOWRzfxWd7YVHqLU7of4A88ahonJr8AY5h/v:fvKmIzfxW5f+e4V4aT5

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:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.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:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.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:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

pid process

2876 90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.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:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

pid	process
2876	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe
2876	90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe

C:\Users\Admin\AppData\Local\Temp\90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.exe
"C:\Users\Admin\AppData\Local\Temp\90a76e28f761c3a0580ec1b56eb241b57001091cac3d63378dec4368279103dd.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:2876

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/2876-0-0x0000000000BA0000-0x000000000124E000-memory.dmp

Filesize
6.7MB

Download
memory/2876-1-0x0000000077594000-0x0000000077596000-memory.dmp

Filesize
8KB

Download
memory/2876-2-0x0000000000BA1000-0x0000000000BB8000-memory.dmp

Filesize
92KB

Download
memory/2876-3-0x0000000000BA0000-0x000000000124E000-memory.dmp

Filesize
6.7MB

Download
memory/2876-4-0x0000000000BA0000-0x000000000124E000-memory.dmp

Filesize
6.7MB

Download