stealc | 74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2024, 10:25

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General

Target

74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe
Size

1.7MB
MD5

7e94db5b69f164dfaece2715ab443254
SHA1

4667e70ce1df68e0bcd6fba442fbb92f2bd1892e
SHA256

74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130
SHA512

ec6231d1714bc02db13ec6dbae208068a3de7e4385807f80725ec5781e911d028255fa9a2d4883bd24ef5d0f12bb54df093a814ad790be2528f030a8c0313593
SSDEEP

49152:SY1ySnSCeX+CHrw9LBDb4t+oxXLrtXzch:SY11nSPX+aMJb0+o93eh

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__	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.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	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Wine	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3472	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.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	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3472	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe
3472	74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe

C:\Users\Admin\AppData\Local\Temp\74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.exe
"C:\Users\Admin\AppData\Local\Temp\74b1a21fc3b22435493d6fd401b8072f9721a53af2f10c7a682c9d155018a130.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:3472

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/3472-0-0x0000000000930000-0x0000000000FC7000-memory.dmp

Filesize
6.6MB

Download
memory/3472-2-0x0000000000931000-0x0000000000948000-memory.dmp

Filesize
92KB

Download
memory/3472-3-0x0000000000930000-0x0000000000FC7000-memory.dmp

Filesize
6.6MB

Download
memory/3472-1-0x0000000077AC4000-0x0000000077AC6000-memory.dmp

Filesize
8KB

Download
memory/3472-4-0x0000000000930000-0x0000000000FC7000-memory.dmp

Filesize
6.6MB

Download