stealc | 72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/11/2024, 10:25

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General

Target

72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe
Size

1.7MB
MD5

7b9823554a2a50cef42a6d4b399a03fb
SHA1

1a8a7a8d0169c01377ab7f2888669aa769921276
SHA256

72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f
SHA512

78beb3938f2a44bfda74ed4d02638b48a0ce0a3f48bef3f6c274e29979e11d477fb813e7be5aa2fbb950c9177a06d30a8a0e8eeaa55ff18310fce60386d7b53d
SSDEEP

49152:vJndr40nWKw3+bFOVNCJdBiM3VAXJkUrUwIoy:D40rQ2BiM3aZdryoy

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__	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.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	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Wine	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2080	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.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	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2080	72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe

C:\Users\Admin\AppData\Local\Temp\72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.exe
"C:\Users\Admin\AppData\Local\Temp\72944c0e43e4fed6c5229bd604e47a6632db8a9abe3771a265fa33ab4d9ae45f.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:2080

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/2080-0-0x0000000000130000-0x00000000007BF000-memory.dmp

Filesize
6.6MB

Download
memory/2080-1-0x0000000077E80000-0x0000000077E82000-memory.dmp

Filesize
8KB

Download
memory/2080-3-0x0000000000130000-0x00000000007BF000-memory.dmp

Filesize
6.6MB

Download
memory/2080-2-0x0000000000131000-0x0000000000148000-memory.dmp

Filesize
92KB

Download
memory/2080-5-0x0000000000130000-0x00000000007BF000-memory.dmp

Filesize
6.6MB

Download