stealc | 032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 06:30

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General

Target

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe
Size

1.7MB
MD5

30a1dccb1ae00aba4155776ccc46d956
SHA1

99ed961b69c67e2a9fd0fc3bff43f64eb43713a8
SHA256

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb
SHA512

30a67fb7f0b2ba254dd15d2409312a9f6cc4f36f809d4b1ad574a5d09cdde4ff2b845c149f8321f2abae9a2cf52e0e75725be82dc58610c49b56951193eeaa1d
SSDEEP

24576:K7N6dixcFMHMGg3qpjDc7irOsNfUB4gECHBCyRTh2vJvL8Q222aMR/y7gwDeMyJ4:Kc5MsF6w7ivfUBoyBPy75eM1NV+q

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.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

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.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

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

pid process

1900 032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

pid	process
1900	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.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

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

pid process

1900 032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

pid	process
1900	032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe

C:\Users\Admin\AppData\Local\Temp\032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.exe
"C:\Users\Admin\AppData\Local\Temp\032feb2031b118d540095ac8f923a1c75871a32ddc92a39efb8c796673828dfb.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:1900

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/1900-0-0x00000000000A0000-0x0000000000740000-memory.dmp

Filesize
6.6MB

Download
memory/1900-1-0x00000000776D0000-0x00000000776D2000-memory.dmp

Filesize
8KB

Download
memory/1900-2-0x00000000000A1000-0x00000000000B8000-memory.dmp

Filesize
92KB

Download
memory/1900-3-0x00000000000A0000-0x0000000000740000-memory.dmp

Filesize
6.6MB

Download
memory/1900-4-0x00000000000A0000-0x0000000000740000-memory.dmp

Filesize
6.6MB

Download