stealc | d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 08:39

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General

Target

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe
Size

1.8MB
MD5

ff8eb93e00cf8c24c14b4a9b713f2115
SHA1

928bf41910af49788bfa067e0302312b33c9fb5b
SHA256

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e
SHA512

1147cb55542da0a15c26d60f2a8f4e69580259dccdfb69ed938666123b679f9fad2cf169aafaf47286721c67fade42b3e87c5c2a089bcd239513c5b3074430a9
SSDEEP

49152:2EH/jBAM9sx3cSxzRDma8FUc/g3k1skFtnLJq1rjf:3fqgWfxtDB8Fs01skFtn1mj

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:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.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:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.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:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

pid process

2000 d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

pid	process
2000	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.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:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

pid process

2000 d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

pid	process
2000	d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe

C:\Users\Admin\AppData\Local\Temp\d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.exe
"C:\Users\Admin\AppData\Local\Temp\d729e5ca94577644c249e1534a56301da41832b32e81bc4866742a908359238e.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:2000

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/2000-0-0x0000000000BC0000-0x0000000001271000-memory.dmp

Filesize
6.7MB

Download
memory/2000-1-0x0000000076F90000-0x0000000076F92000-memory.dmp

Filesize
8KB

Download
memory/2000-2-0x0000000000BC1000-0x0000000000BD8000-memory.dmp

Filesize
92KB

Download
memory/2000-3-0x0000000000BC0000-0x0000000001271000-memory.dmp

Filesize
6.7MB

Download
memory/2000-4-0x0000000000BC0000-0x0000000001271000-memory.dmp

Filesize
6.7MB

Download