stealc | 1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 08:14

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General

Target

1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe
Size

1.7MB
MD5

005cead84d34b1b48a78dd2abbb19550
SHA1

6ddf8d4031dac55a742ef768cdd1dc5f8ab3b55e
SHA256

1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275
SHA512

7446bc48643564289a94619d00f113510671bea41d754feaae020e37143d091da614f40afbbdd3d545c7e40de61d254584690a537b5eb896644bae67ddd4df49
SSDEEP

49152:QxhhikBlOHyDY6TuwJwHME7HIdGY+5X8oRtuZTB0H:QnhxXOHybJwsxGY8X8xZ

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__	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.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	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2180	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.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	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2180	1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe

C:\Users\Admin\AppData\Local\Temp\1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.exe
"C:\Users\Admin\AppData\Local\Temp\1666382723f07e8d7aaaab8340bef960686c5561ae731a8e3c70c53ce0540275.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:2180

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/2180-0-0x00000000011D0000-0x0000000001875000-memory.dmp

Filesize
6.6MB

Download
memory/2180-1-0x00000000779A0000-0x00000000779A2000-memory.dmp

Filesize
8KB

Download
memory/2180-2-0x00000000011D1000-0x00000000011E8000-memory.dmp

Filesize
92KB

Download
memory/2180-3-0x00000000011D0000-0x0000000001875000-memory.dmp

Filesize
6.6MB

Download
memory/2180-4-0x00000000011D0000-0x0000000001875000-memory.dmp

Filesize
6.6MB

Download