stealc | 841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52

Analysis

max time kernel
148s
max time network
154s
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 02:58

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General

Target

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe
Size

1.7MB
MD5

b3cec29dfcc248bc4f4f33ff5ba14470
SHA1

389dc1f719b34841eaa55c8e81ce0f773fea3acf
SHA256

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52
SHA512

85803678ee823025990a8377b0b51335be58365bc1fcabff37e4ed1330b93438bbbb94e40908f3ccaea4631ba5d155d0391198ee3639630bd981cfedfdc5828a
SSDEEP

49152:eZVwZPBu0P7eKyJFw0RfC4xtyZZ3z5Xz+lQQCf2cj9:eV+PBbLdCbDY3t2HG

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:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.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:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.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:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

pid process

4028 841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.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:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

pid	process
4028	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe
4028	841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe

C:\Users\Admin\AppData\Local\Temp\841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.exe
"C:\Users\Admin\AppData\Local\Temp\841e3ab686e632551e2229d68366490832987ab47d308c54f6817f3e13a5ff52.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:4028

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/4028-0-0x00000000004C0000-0x0000000000B4F000-memory.dmp

Filesize
6.6MB

Download
memory/4028-1-0x0000000077584000-0x0000000077586000-memory.dmp

Filesize
8KB

Download
memory/4028-2-0x00000000004C1000-0x00000000004D8000-memory.dmp

Filesize
92KB

Download
memory/4028-3-0x00000000004C0000-0x0000000000B4F000-memory.dmp

Filesize
6.6MB

Download
memory/4028-4-0x00000000004C0000-0x0000000000B4F000-memory.dmp

Filesize
6.6MB

Download