stealc | f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49

Analysis

max time kernel
94s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 22:09

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General

Target

f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe
Size

1.8MB
MD5

389fd6e0b4586061fea1c2cab8d9015b
SHA1

c3799c51e3c03a591cb93e78e12abff8d40ebe43
SHA256

f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49
SHA512

aa2e56535a92661b31225f5d79fa037cd78b193a0f3c0b1cf910df0ed7392886262c02aac6ce3511cf4ba17086fd0f2849db5d536459524a6f3ad0c946001f4e
SSDEEP

49152:zRtRpu0WhcLiD2bpHXzjuCret2dNiHwHtf2QekMvgtbeL20Z:zRttWiiDup3z6Met2RAbkMvg/

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__	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.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	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2500	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.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	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2500	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe
2500	f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe

C:\Users\Admin\AppData\Local\Temp\f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.exe
"C:\Users\Admin\AppData\Local\Temp\f523464a1a8fab602112da9930216e44fb6013128f393bf6a3a4f51521517d49.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:2500

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/2500-0-0x0000000000510000-0x0000000000BB9000-memory.dmp

Filesize
6.7MB

Download
memory/2500-1-0x0000000077814000-0x0000000077816000-memory.dmp

Filesize
8KB

Download
memory/2500-2-0x0000000000511000-0x0000000000528000-memory.dmp

Filesize
92KB

Download
memory/2500-4-0x0000000000510000-0x0000000000BB9000-memory.dmp

Filesize
6.7MB

Download
memory/2500-5-0x0000000000510000-0x0000000000BB9000-memory.dmp

Filesize
6.7MB

Download