stealc | f8be1508b151a106dacc6b263539046dbb201059e752c2ff46f4034f3d68f95e

Analysis

max time kernel
149s
max time network
154s
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 01:14

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General

Target

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe
Size

1.7MB
MD5

402f181bac324729b6fdfc930ca9970f
SHA1

7e4d80a8653ecf443132ae1b1ce4c1200302850b
SHA256

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b
SHA512

8c8fbf70df0f3de53b0b69818cc917c52c4ee15d6f4d5b7e592b8a7e891630c2155b461cb4ecd75a73cd945a473c7091f3c88f73ea094d9388093146d6f59fc6
SSDEEP

49152:lXcoAuZIt1QKmQQ2KwVmeMmNdh0wN333vdx:lqOI0QQ1wked5dnD

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:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.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:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.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:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Wine	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

pid process

1748 22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.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:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

pid	process
1748	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe
1748	22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe

C:\Users\Admin\AppData\Local\Temp\22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.exe
"C:\Users\Admin\AppData\Local\Temp\22365d3502b4eca87da0dc2cd1c74cd7a0d757b38ba1790affc6d1485a6c3c8b.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:1748

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/1748-0-0x0000000000900000-0x0000000000F8A000-memory.dmp

Filesize
6.5MB

Download
memory/1748-1-0x0000000077AC4000-0x0000000077AC6000-memory.dmp

Filesize
8KB

Download
memory/1748-2-0x0000000000901000-0x0000000000918000-memory.dmp

Filesize
92KB

Download
memory/1748-3-0x0000000000900000-0x0000000000F8A000-memory.dmp

Filesize
6.5MB

Download
memory/1748-4-0x0000000000900000-0x0000000000F8A000-memory.dmp

Filesize
6.5MB

Download