stealc | a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86

Analysis

max time kernel
92s
max time network
137s
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 13:43

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General

Target

a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe
Size

1.7MB
MD5

eea6ffe796370bf2dab3d76266b23f6a
SHA1

ae7795f7d35915574965edefad957cc17008a2b3
SHA256

a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86
SHA512

f3b3ea6a36a76a3d80201c5b79c7a53faf8016ba8f54b4edbd7f54e7a835ccaae70615ecbe4d22dce5379f48f7bf9ba7aa7cdc9e0db96151b49ea8cbaa2ea2a5
SSDEEP

49152:LNBT0HaEo1FfN7IBTXRFIYx8XmRET4aQV8pfkP:5BTtRFeTBFI0JXdIfkP

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__	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.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	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1776	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.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	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1776	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe
1776	a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe

C:\Users\Admin\AppData\Local\Temp\a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.exe
"C:\Users\Admin\AppData\Local\Temp\a902e817bf2ad61446350609c8fb93b9218bb73aca9a1420eebd304cad4dff86.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:1776

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/1776-0-0x00000000005A0000-0x0000000000C29000-memory.dmp

Filesize
6.5MB

Download
memory/1776-1-0x0000000077BD4000-0x0000000077BD6000-memory.dmp

Filesize
8KB

Download
memory/1776-2-0x00000000005A1000-0x00000000005B8000-memory.dmp

Filesize
92KB

Download
memory/1776-3-0x00000000005A0000-0x0000000000C29000-memory.dmp

Filesize
6.5MB

Download
memory/1776-4-0x00000000005A0000-0x0000000000C29000-memory.dmp

Filesize
6.5MB

Download