stealc | 840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248

Analysis

max time kernel
94s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 07:12

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General

Target

840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe
Size

4.9MB
MD5

ac83f35170e7e84000cc5a17472be30b
SHA1

21338733185cd448038415401df35ac859fd9786
SHA256

840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248
SHA512

36346d1cb124ebbcec4b4733dc28b37bcf376802345024defb0cf51154c4c30514c7ffd66a2bb615660d5bef501f3120a5456808b2a4de0882677c925d292a4d
SSDEEP

49152:C3ar34dAX4N4GadW7NMdrFq+Sj305R6BrOBU/B6:C3ar34dAX4N4GaINeFq+Sj30grsG6

Score

10^/10

stealc stok defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3468	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3468	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe
3468	840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe

C:\Users\Admin\AppData\Local\Temp\840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.exe
"C:\Users\Admin\AppData\Local\Temp\840eb3ad83c9b698c00b959ff21b69bf8a7623cf3089de64ca62f76d3d212248.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:3468

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/3468-0-0x0000000000BC0000-0x00000000010B1000-memory.dmp

Filesize
4.9MB

Download
memory/3468-1-0x00000000774C4000-0x00000000774C6000-memory.dmp

Filesize
8KB

Download
memory/3468-2-0x0000000000BC1000-0x0000000000E0A000-memory.dmp

Filesize
2.3MB

Download
memory/3468-3-0x0000000000BC0000-0x00000000010B1000-memory.dmp

Filesize
4.9MB

Download
memory/3468-5-0x0000000000BC1000-0x0000000000E0A000-memory.dmp

Filesize
2.3MB

Download