stealc | 51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 07:27

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General

Target

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe
Size

1.8MB
MD5

ce4e1c5130fb8e556ebdd0187715fa91
SHA1

f2d89a8e3ac8c8d2547e238ff76180e07d0b5436
SHA256

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8
SHA512

8bef12c464e2178bd5aa70c2cd26e113e469d9e6b1f12f469955df9c9165496d2822b1b31039264de41f4b7d24801afcd9ef36981beaf824ea001582b9326207
SSDEEP

49152:IKLsUCXqRyjOgzcODpw4erSJNIMg8xd0Cl8C:I+s2yig1pwZCIMpD/lf

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:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.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:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.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:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

pid	Process
3532	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.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:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

pid	Process
3532	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe
3532	51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe

C:\Users\Admin\AppData\Local\Temp\51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.exe
"C:\Users\Admin\AppData\Local\Temp\51df97cf0aa9340deb532a45ab4b3e9a39a14c4357b03a00ef74fbc7c9e48ef8.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:3532

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/3532-0-0x00000000001E0000-0x0000000000885000-memory.dmp

Filesize
6.6MB

Download
memory/3532-1-0x00000000777B4000-0x00000000777B6000-memory.dmp

Filesize
8KB

Download
memory/3532-2-0x00000000001E1000-0x00000000001F8000-memory.dmp

Filesize
92KB

Download
memory/3532-3-0x00000000001E0000-0x0000000000885000-memory.dmp

Filesize
6.6MB

Download
memory/3532-5-0x00000000001E0000-0x0000000000885000-memory.dmp

Filesize
6.6MB

Download