stealc | 7d10f310add62c23de4ef7ef7221f2884f10b773a26e3a371ce7c8b6f9fea653

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 01:33

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General

Target

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe
Size

1.7MB
MD5

95971c759ebca3d179ab9305188360cf
SHA1

8bfac4ee7175aa24dfa9e308840f4245efc0c3f9
SHA256

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac
SHA512

da6669201c845626183cf6abb4f4b40c91f44bbac1115e856903317ee3febb62cf340acd77b27a1dbab0e9d6c74108b3ef0304728d6e46056cacd4a0da2c6dd6
SSDEEP

24576:zTsRmAqTki8jQGppX/frO5mAAmjzK8DtH+oBqvST/kIc0E7O7quwKkxe:cRcTQ95rO55A2zK8xeoBqEsIya6Kh

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:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.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:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.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:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

pid	Process
2652	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.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:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

pid	Process
2652	82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe

C:\Users\Admin\AppData\Local\Temp\82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.exe
"C:\Users\Admin\AppData\Local\Temp\82c9c6fb94030e3955091fc37523491c98325ed84adf8a3116c3ab79efddb4ac.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:2652

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/2652-0-0x00000000009A0000-0x0000000001033000-memory.dmp

Filesize
6.6MB

Download
memory/2652-1-0x0000000077130000-0x0000000077132000-memory.dmp

Filesize
8KB

Download
memory/2652-3-0x00000000009A0000-0x0000000001033000-memory.dmp

Filesize
6.6MB

Download
memory/2652-2-0x00000000009A1000-0x00000000009B8000-memory.dmp

Filesize
92KB

Download
memory/2652-4-0x00000000009A0000-0x0000000001033000-memory.dmp

Filesize
6.6MB

Download