stealc | a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21

Analysis

max time kernel
93s
max time network
139s
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 02:58

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General

Target

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe
Size

1.7MB
MD5

70c58ce5ae24e8f18ea008f6d533b24e
SHA1

75a22fe28d864d32c5cd6c76dde6ab1c268830fd
SHA256

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21
SHA512

51793b5545da639cfc1b89b605276a8cdefa0164505e34c910dfb487f07c3c1c6450e2b722dc9c7576ed7720e096e3bd590ad0d7c4df607fc4ee56e6e0b994ec
SSDEEP

49152:3OpiRmhdO3JWgzhfJI1eYxVA/I5QCaQGgHItBYBYGngH8B:3OoCdOUgtf6w6VA/CGaj

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:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.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:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.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:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

pid process

1460 a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.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:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

pid	process
1460	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe
1460	a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe

C:\Users\Admin\AppData\Local\Temp\a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.exe
"C:\Users\Admin\AppData\Local\Temp\a42c422324648c42f01725b9c5b20472d731c8df713f015cc815c6be67cf2d21.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:1460

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/1460-0-0x0000000000310000-0x000000000098F000-memory.dmp

Filesize
6.5MB

Download
memory/1460-1-0x0000000076F44000-0x0000000076F46000-memory.dmp

Filesize
8KB

Download
memory/1460-2-0x0000000000311000-0x0000000000328000-memory.dmp

Filesize
92KB

Download
memory/1460-3-0x0000000000310000-0x000000000098F000-memory.dmp

Filesize
6.5MB

Download
memory/1460-5-0x0000000000310000-0x000000000098F000-memory.dmp

Filesize
6.5MB

Download