stealc | fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2

Analysis

max time kernel
149s
max time network
150s
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 02:04

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General

Target

fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe
Size

1.7MB
MD5

7adcd167b8cf60515a3ea59b9be4fa8c
SHA1

10ea5e139314936ca636c1d7f6e5658d2511879e
SHA256

fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2
SHA512

d3da19236100068384a766d63e76ab184695e094447507c24f3da9a57b6907b435fecb82a432eecc6aafce88b3596b3e5e237b81abe2d1c383a6d98b9b45f651
SSDEEP

49152:JZb4juGdIKc6DFoBW5rGUq3GNloMKxHHqn:JZb4jdW6FoBW8yLogn

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__	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.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\VideoBiosVersion	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3020	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.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	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3020	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe
3020	fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe

C:\Users\Admin\AppData\Local\Temp\fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.exe
"C:\Users\Admin\AppData\Local\Temp\fc1e21104ffde1491ad82c570cb41d09f1866ad43bc3a4d59a147662f15409d2.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:3020

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/3020-0-0x0000000000860000-0x0000000000EFD000-memory.dmp

Filesize
6.6MB

Download
memory/3020-1-0x00000000776C4000-0x00000000776C6000-memory.dmp

Filesize
8KB

Download
memory/3020-2-0x0000000000861000-0x0000000000878000-memory.dmp

Filesize
92KB

Download
memory/3020-4-0x0000000000860000-0x0000000000EFD000-memory.dmp

Filesize
6.6MB

Download
memory/3020-5-0x0000000000860000-0x0000000000EFD000-memory.dmp

Filesize
6.6MB

Download