stealc | d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69

Analysis

max time kernel
150s
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
20-11-2024 08:13

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General

Target

d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe
Size

1.7MB
MD5

141c303be88b900bde3df51fb8f87b0a
SHA1

26758be665fca7fb0e007147aa4234b60be1d53f
SHA256

d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69
SHA512

af634d218720dde27cbf0f1a6d8f99e181dea0b2ea0d4c4cc0f8e9a31accccb9d5be57fccd825ef83b1333b4a9ac4ed6806eb78a9be921e4445463b2e04421f3
SSDEEP

49152:vXwnELO1aTOxRI8Vp2qcjkQBqOq+51YIEXy8FllecC:vXwnEy1KOQ8VoOO35CIEJlfC

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__	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.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	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.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-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4352	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.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	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4352	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe
4352	d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe

C:\Users\Admin\AppData\Local\Temp\d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.exe
"C:\Users\Admin\AppData\Local\Temp\d79cb3745a94eda6458658844222b689af75a0c9db9b3b0164ad15d454f3fc69.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:4352

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/4352-0-0x0000000000250000-0x00000000008E2000-memory.dmp

Filesize
6.6MB

Download
memory/4352-1-0x0000000077EB4000-0x0000000077EB6000-memory.dmp

Filesize
8KB

Download
memory/4352-2-0x0000000000251000-0x0000000000268000-memory.dmp

Filesize
92KB

Download
memory/4352-3-0x0000000000250000-0x00000000008E2000-memory.dmp

Filesize
6.6MB

Download
memory/4352-5-0x0000000000250000-0x00000000008E2000-memory.dmp

Filesize
6.6MB

Download