stealc | 24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 02:20

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General

Target

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe
Size

1.7MB
MD5

38a9ecc0994ecbddb16d6fb2d4a3e911
SHA1

d4bd9f9c0b4dc11f8c4a2f5209ad4795fa4056d5
SHA256

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f
SHA512

3f9f7459007bb5af43c2dc11cf2d2b055572bb0b5dcd34d345eebe490a5a574d3d6fd76e822f308c1d7fa0766d29b5daa44b8ff9f622812497b55ce5948fcf0c
SSDEEP

49152:6Z+u0Io0uNP//L7OaTShOKZ4bYFYb4/r7:6wu0Iq17zJKZViC

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:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.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:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.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:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

pid process

2100 24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

pid	process
2100	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.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:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

pid process

2100 24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

pid	process
2100	24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe

C:\Users\Admin\AppData\Local\Temp\24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.exe
"C:\Users\Admin\AppData\Local\Temp\24f92db69d14575388d39cfbb065ff06b14fedc28fc9e1fedad851672ac6111f.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:2100

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/2100-0-0x0000000000E20000-0x00000000014B4000-memory.dmp

Filesize
6.6MB

Download
memory/2100-1-0x0000000077B30000-0x0000000077B32000-memory.dmp

Filesize
8KB

Download
memory/2100-3-0x0000000000E20000-0x00000000014B4000-memory.dmp

Filesize
6.6MB

Download
memory/2100-2-0x0000000000E21000-0x0000000000E38000-memory.dmp

Filesize
92KB

Download
memory/2100-4-0x0000000000E20000-0x00000000014B4000-memory.dmp

Filesize
6.6MB

Download