stealc | fdac75489bb60be5f69965d59f88ef09c257d7c8f179b2251e9d2fd068f97241

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 01:27

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General

Target

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe
Size

1.7MB
MD5

8427e384ea4951ee4a5f0b425fa5ad02
SHA1

08f6dd97b593d0bc86339e1a1b7dd405f7798d4e
SHA256

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba
SHA512

b62cea071d32ce26c8542fd718ccba61995a7807d73281c7ec066858052d3f7d3539baabafa5e2b0df42c1976f61fece4a7259c92282a3494f7a406c727eaf52
SSDEEP

49152:5TaSFKi7a7mCv13APYbS8Gsfc7fV7pgs93d/4saM:N0iuJmPWSRpLnN/

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:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.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:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.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:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

pid process

3960 1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.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:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

pid	process
3960	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe
3960	1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe

C:\Users\Admin\AppData\Local\Temp\1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.exe
"C:\Users\Admin\AppData\Local\Temp\1498a63ecb4dab164c1b8287ea274408379e317874d7d05f41bc6209060326ba.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:3960

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/3960-0-0x0000000000970000-0x0000000000FF1000-memory.dmp

Filesize
6.5MB

Download
memory/3960-1-0x00000000772D4000-0x00000000772D6000-memory.dmp

Filesize
8KB

Download
memory/3960-2-0x0000000000971000-0x0000000000988000-memory.dmp

Filesize
92KB

Download
memory/3960-3-0x0000000000970000-0x0000000000FF1000-memory.dmp

Filesize
6.5MB

Download
memory/3960-4-0x0000000000970000-0x0000000000FF1000-memory.dmp

Filesize
6.5MB

Download