stealc | f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 07:49

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General

Target

f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe
Size

1.7MB
MD5

2f1804745c27ac741390be5b144747c7
SHA1

36ab8f8b9acf2d8756fb75250cb19e9aa9ca3e43
SHA256

f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4
SHA512

32a1f408b41c6ecb0ec933898d69db37e6182ab7f5c90873049cef647091bcbc43923dcfbd885e559dc8b55f6234fd8392be4ae33080fd90aa7436884cad4470
SSDEEP

24576:aG1bAthoEakI4PhtWP3DrF6RHNo14OZUgrZLmY1wlPpRvC/GCyd1vaXrbzbE3Isv:a+EhaH4PWPTZewjm7d3Rzwo3IzMVUg

Score

10^/10

stealc stok discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.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	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2792	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.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	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2792	f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe

C:\Users\Admin\AppData\Local\Temp\f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.exe
"C:\Users\Admin\AppData\Local\Temp\f0ff20abe90c87f8d45682a3a8d8551a0a296fedc6d6c15f3398ad410bf356d4.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:2792

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/2792-0-0x0000000000F80000-0x000000000161F000-memory.dmp

Filesize
6.6MB

Download
memory/2792-2-0x0000000000F81000-0x0000000000F98000-memory.dmp

Filesize
92KB

Download
memory/2792-1-0x0000000077660000-0x0000000077662000-memory.dmp

Filesize
8KB

Download
memory/2792-3-0x0000000000F80000-0x000000000161F000-memory.dmp

Filesize
6.6MB

Download
memory/2792-5-0x0000000000F80000-0x000000000161F000-memory.dmp

Filesize
6.6MB

Download