stealc | b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04

Analysis

max time kernel
92s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 22:26

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General

Target

b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe
Size

1.7MB
MD5

15e319099fbab9989d61bf004efaba62
SHA1

612c52009588f8582021af35152f7fcd429909fd
SHA256

b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04
SHA512

77ae5f87f39755b8dfb2d02ee55cd031164ce1f6baba6b06211f9301895781622ef62675da62aae78d75f34281e6e6092d695fb0c1b84f38083199f70cd7c0ad
SSDEEP

49152:0NQ9a9bdEaSxJv3LEJhn/a82bXwTJQDAXmkG:0sa9bdEbKJ5/a8YwTJQ4mn

Score

10^/10

stealc stok defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.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	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4676	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.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	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4676	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe
4676	b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe

C:\Users\Admin\AppData\Local\Temp\b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.exe
"C:\Users\Admin\AppData\Local\Temp\b419f147db64a0a4b40dcefb1f3b3d8e8615216b126575f47d1410116b777c04.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:4676

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

Replay Monitor

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Downloads

memory/4676-0-0x00000000009F0000-0x000000000106D000-memory.dmp

Filesize
6.5MB

Download
memory/4676-1-0x0000000077904000-0x0000000077906000-memory.dmp

Filesize
8KB

Download
memory/4676-2-0x00000000009F1000-0x0000000000A08000-memory.dmp

Filesize
92KB

Download
memory/4676-4-0x00000000009F0000-0x000000000106D000-memory.dmp

Filesize
6.5MB

Download
memory/4676-5-0x00000000009F0000-0x000000000106D000-memory.dmp

Filesize
6.5MB

Download