stealc | 4c36e0283c5d27fb2b9dcd9731165f32a0530062ea9b509bf4e9ca0decaf168e

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 01:07

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General

Target

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe
Size

1.7MB
MD5

245c81512eb09539e1b3de0f7ae3353c
SHA1

ccbabc4aff4377d8fb107bd1ff917e91f80800f2
SHA256

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c
SHA512

30830577cfda41729965b6512087dd371a81b7b3ab88abac740a8562a93e422d8439036d074d60dce8bd13b40f682a325ad5b9af0b4e2caca1a7fb53c3b1dbea
SSDEEP

49152:vsY6r+lUBhBvJaUtJmCyJzjPLxjmGgWg:EY6r+CnB3CHNBmGgW

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:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.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:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.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:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

pid process

2332 753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

pid	process
2332	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.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:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

pid process

2332 753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

pid	process
2332	753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe

C:\Users\Admin\AppData\Local\Temp\753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.exe
"C:\Users\Admin\AppData\Local\Temp\753b0e5c394f463e9497e2f396f45c51447984bf3682222aaec0e6247c2b442c.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:2332

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/2332-0-0x0000000000DE0000-0x000000000146B000-memory.dmp

Filesize
6.5MB

Download
memory/2332-1-0x0000000077540000-0x0000000077542000-memory.dmp

Filesize
8KB

Download
memory/2332-2-0x0000000000DE1000-0x0000000000DF8000-memory.dmp

Filesize
92KB

Download
memory/2332-3-0x0000000000DE0000-0x000000000146B000-memory.dmp

Filesize
6.5MB

Download
memory/2332-5-0x0000000000DE0000-0x000000000146B000-memory.dmp

Filesize
6.5MB

Download