stealc | d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 02:45

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General

Target

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe
Size

1.7MB
MD5

6fe3130fbf57b8dfe19158188df1e915
SHA1

ff0e2328c167f39bab919190099086312150ff31
SHA256

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f
SHA512

bbca47bf611131d0041ebd05f1758d524bbe568b28a09514afa4402c53ad009f08011f79092e8d6116895e3165bf9e584f29926bed725e3e46048dc1be44ebc0
SSDEEP

24576:jgPQlVIeQz7dxlBiRytQr44w900YE/MM6O35Tb8D1fXww7hnHRvJEUjMDS+5WXON:5947pB504+DRXwyxKUJXY

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:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.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:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.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:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

pid	Process
2168	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.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:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

pid	Process
2168	d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe

C:\Users\Admin\AppData\Local\Temp\d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.exe
"C:\Users\Admin\AppData\Local\Temp\d31217975514e9ecb073887fad050b7455c43a746a5ee3273368f48ba106d56f.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:2168

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/2168-0-0x00000000013E0000-0x0000000001A7B000-memory.dmp

Filesize
6.6MB

Download
memory/2168-1-0x0000000076F20000-0x0000000076F22000-memory.dmp

Filesize
8KB

Download
memory/2168-3-0x00000000013E0000-0x0000000001A7B000-memory.dmp

Filesize
6.6MB

Download
memory/2168-2-0x00000000013E1000-0x00000000013F8000-memory.dmp

Filesize
92KB

Download
memory/2168-5-0x00000000013E0000-0x0000000001A7B000-memory.dmp

Filesize
6.6MB

Download