stealc | ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa

Analysis

max time kernel
92s
max time network
140s
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 08:55

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General

Target

ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe
Size

4.9MB
MD5

65da3999e1355d9799be96ff147014ec
SHA1

f2c05ffa9f501a1fee037fde6046e4820ec5bd89
SHA256

ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa
SHA512

3c726a801d2413e87d78b57133722a6346a9156d1f463f6f553e07d36a0c899288129867eed566e04bfeb63cabe7385a896d3b0ba38cb24e8b307570b7c49bfa
SSDEEP

24576:4nkZOkQijsxT+lg+hOdrADZQT9c8/hRHZRiVXlyG5ahK4OfPS9+oMS9dQQpEPEA5:4nNssxMhhOdyeT9y7fPC+KQeEHFS9a/

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__	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.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	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
244	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.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	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
244	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe
244	ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe

C:\Users\Admin\AppData\Local\Temp\ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.exe
"C:\Users\Admin\AppData\Local\Temp\ab64e3f44b5bce5b0181bf5bd682ce6438ef51e3a8802cdfac837c0619bc4bfa.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:244

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/244-0-0x0000000000D50000-0x000000000123F000-memory.dmp

Filesize
4.9MB

Download
memory/244-1-0x0000000077834000-0x0000000077836000-memory.dmp

Filesize
8KB

Download
memory/244-4-0x0000000000D50000-0x000000000123F000-memory.dmp

Filesize
4.9MB

Download
memory/244-5-0x0000000000D51000-0x0000000000F9A000-memory.dmp

Filesize
2.3MB

Download
memory/244-3-0x0000000000D51000-0x0000000000F9A000-memory.dmp

Filesize
2.3MB

Download
memory/244-6-0x0000000000D50000-0x000000000123F000-memory.dmp

Filesize
4.9MB

Download