stealc | ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877

Analysis

max time kernel
95s
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
20-11-2024 07:48

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General

Target

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe
Size

1.7MB
MD5

38f264cb7053111379d672bfc863040c
SHA1

5a90adc841bc1a253b20358c4699556cb61317cb
SHA256

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877
SHA512

51ed1b49931adb108edf08bce0fd9b7ad25872ee56d82487359a4ca05129f6c54f9ef338995400757e79260fc902849b63b1273dd30e95d6aba5b6d5053984b6
SSDEEP

49152:6Z+u0Io0uNP//L7OaTShOKZ4bYFYb4/r7g:6wu0Iq17zJKZViCg

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:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.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:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.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:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

pid process

540 ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.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:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

pid	process
540	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe
540	ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe

C:\Users\Admin\AppData\Local\Temp\ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.exe
"C:\Users\Admin\AppData\Local\Temp\ad161aa94fcfe0207e006157534bb53d03fc5532ed6eeb9f0416f0ab34abe877.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:540

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/540-0-0x0000000000BB0000-0x0000000001244000-memory.dmp

Filesize
6.6MB

Download
memory/540-1-0x0000000077A14000-0x0000000077A16000-memory.dmp

Filesize
8KB

Download
memory/540-2-0x0000000000BB1000-0x0000000000BC8000-memory.dmp

Filesize
92KB

Download
memory/540-3-0x0000000000BB0000-0x0000000001244000-memory.dmp

Filesize
6.6MB

Download
memory/540-4-0x0000000000BB0000-0x0000000001244000-memory.dmp

Filesize
6.6MB

Download