stealc | 917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 20:31

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General

Target

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe
Size

1.7MB
MD5

873bb827bd676e97275170b902bcde58
SHA1

960d9076fc26dc577b17e38e0ab7406fa0ecde99
SHA256

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7
SHA512

22fcb2eeb098a47db578c6fab43b469e660e971cd76a074245cc5e8b21598353f4ff92a4d94258fe2111a9d23d3d4c3204baaf0bd4642bcfa39026e07dbb7101
SSDEEP

24576:engJcwgDBj9qz9ZV2cf4DB9CtNBBGEXSUrpqJY3SDCCBp2Zaym0Fpm:IgJclF9qwcgDBI9BGWSUll31ky0

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:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.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:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.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:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

pid process

1312 917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

pid	process
1312	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.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:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

pid process

1312 917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

pid	process
1312	917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe

C:\Users\Admin\AppData\Local\Temp\917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.exe
"C:\Users\Admin\AppData\Local\Temp\917e405558c530b442d17b061699df51dfcb27af289463edacd70a38f22d3aa7.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:1312

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/1312-0-0x00000000009A0000-0x000000000103A000-memory.dmp

Filesize
6.6MB

Download
memory/1312-1-0x0000000076F90000-0x0000000076F92000-memory.dmp

Filesize
8KB

Download
memory/1312-3-0x00000000009A0000-0x000000000103A000-memory.dmp

Filesize
6.6MB

Download
memory/1312-2-0x00000000009A1000-0x00000000009B8000-memory.dmp

Filesize
92KB

Download
memory/1312-4-0x00000000009A0000-0x000000000103A000-memory.dmp

Filesize
6.6MB

Download