stealc | 9b25c62d773c36fe7bb6c02204f61b1ca0fd6c4d1a9f1245dd917e3439d01588

Analysis

max time kernel
93s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/12/2024, 06:53

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General

Target

Z3E1W_file.exe
Size

1.7MB
MD5

1ccd476ef1cb8a55170a6ef196dfb053
SHA1

5bf1b3781099129a92a2925576c1628f65ac9e19
SHA256

9b25c62d773c36fe7bb6c02204f61b1ca0fd6c4d1a9f1245dd917e3439d01588
SHA512

9ffa61cf282f77a01855237bab9bbcb7bddb24383d643c7d89a58bda6f34b18f628ee743e1782aee3685d5bdf410472a857b035ceaa350d153154e1b50234513
SSDEEP

49152:/m8fa0CeXtsNwgWK+Hqc+5jaye1VwlFbOZjj:eyy/5HjS1elF8j

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__	Z3E1W_file.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	Z3E1W_file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Z3E1W_file.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	Z3E1W_file.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3788	Z3E1W_file.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	Z3E1W_file.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3788	Z3E1W_file.exe
3788	Z3E1W_file.exe

C:\Users\Admin\AppData\Local\Temp\Z3E1W_file.exe
"C:\Users\Admin\AppData\Local\Temp\Z3E1W_file.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:3788

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

Replay Monitor

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Downloads

memory/3788-0-0x0000000000660000-0x0000000000CED000-memory.dmp

Filesize
6.6MB

Download
memory/3788-1-0x0000000077504000-0x0000000077506000-memory.dmp

Filesize
8KB

Download
memory/3788-2-0x0000000000661000-0x0000000000678000-memory.dmp

Filesize
92KB

Download
memory/3788-3-0x0000000000660000-0x0000000000CED000-memory.dmp

Filesize
6.6MB

Download
memory/3788-4-0x0000000000660000-0x0000000000CED000-memory.dmp

Filesize
6.6MB

Download