stealc | 90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e

Analysis

max time kernel
94s
max time network
143s
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 20:19

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General

Target

90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe
Size

1.7MB
MD5

b6b9d3edbf91206c44fd6af369022586
SHA1

56d3dd23078384c66229a2b74ea7437385ec9023
SHA256

90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e
SHA512

9554434cc688b8e8623bfd47346fcfa6dcdaf054181f9e2d832d194623c43cf568a0459d7f9c2a6d42a3de314acf8ffc5629eebb2dc85f48dd1c69ab44ebb2f6
SSDEEP

24576:OivrcLGshQ8B9/vRNbtoEknJZWhj4ZwkKgqVNteA3P1l/haVCoEWf6YfA2NXy:hVsSY9rtWnuj8wkK5lpk4ojBA2l

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__	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.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	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4736	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.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	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4736	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe
4736	90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe

C:\Users\Admin\AppData\Local\Temp\90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.exe
"C:\Users\Admin\AppData\Local\Temp\90cdd5588c88a2adadba0b64f16b7ad2263f45553587758fbeab30c92dee4a0e.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:4736

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/4736-0-0x00000000007A0000-0x0000000000E1C000-memory.dmp

Filesize
6.5MB

Download
memory/4736-1-0x0000000077A34000-0x0000000077A36000-memory.dmp

Filesize
8KB

Download
memory/4736-2-0x00000000007A1000-0x00000000007B8000-memory.dmp

Filesize
92KB

Download
memory/4736-4-0x00000000007A0000-0x0000000000E1C000-memory.dmp

Filesize
6.5MB

Download
memory/4736-5-0x00000000007A0000-0x0000000000E1C000-memory.dmp

Filesize
6.5MB

Download