stealc | 8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53

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
22-11-2024 02:47

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General

Target

8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe
Size

1.8MB
MD5

33ce040234457605280e28c3bda4ae36
SHA1

5f3a7512ea1a032aabd60a2fd364d073ee2fc8f9
SHA256

8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53
SHA512

997e26d1137bc0e6594ce3d3bdc33013e3c684cd244294bb3c6da0c81696da55a6865830092193c8e233990712bde31e7ea3b198f94f0e55d7008aea10016e16
SSDEEP

49152:Y1y20JZiLlkEkOXHKWI+w8EO/mdobM/JImNaWO/3vul8j:cy3/Clk8HKWIj8EmlCIWS3i

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.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	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1708	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.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	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1708	8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe

C:\Users\Admin\AppData\Local\Temp\8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.exe
"C:\Users\Admin\AppData\Local\Temp\8e5a7beeec8489d20ca75c332acf7eb1460dca63256842479c3d5b1ca3f48d53.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:1708

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/1708-0-0x00000000000A0000-0x000000000074B000-memory.dmp

Filesize
6.7MB

Download
memory/1708-1-0x0000000077260000-0x0000000077262000-memory.dmp

Filesize
8KB

Download
memory/1708-2-0x00000000000A1000-0x00000000000B8000-memory.dmp

Filesize
92KB

Download
memory/1708-3-0x00000000000A0000-0x000000000074B000-memory.dmp

Filesize
6.7MB

Download
memory/1708-4-0x00000000000A0000-0x000000000074B000-memory.dmp

Filesize
6.7MB

Download