stealc | b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15

Analysis

max time kernel
149s
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 20:40

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General

Target

b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe
Size

1.7MB
MD5

d0855422158ad818c31272d070384843
SHA1

b4961231eb0bb1f18eb32b7e70608fd592274bf9
SHA256

b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15
SHA512

c2d2e890751589e92657c8b8550aa092de0b375bf21177d2bfdd5296faede87e5c48b57abaaa8ba85ff9154d1c71c2c9989d97dd01db43eeb5c683902f75238c
SSDEEP

49152:JNByELjLU6maRBJ8weUgU4QMG3cCD0fsL2:DDjQ6pJjTL4QMG3cCWsi

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__	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.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	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.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-1-5-21-4089630652-1596403869-279772308-1000\Software\Wine	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3568	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.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	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3568	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe
3568	b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe

C:\Users\Admin\AppData\Local\Temp\b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.exe
"C:\Users\Admin\AppData\Local\Temp\b1eef09ad2077096f9c8dab355ea27c2faea57a1ea217147aba402f9d77b9a15.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:3568

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/3568-0-0x0000000000230000-0x00000000008CB000-memory.dmp

Filesize
6.6MB

Download
memory/3568-1-0x0000000077584000-0x0000000077586000-memory.dmp

Filesize
8KB

Download
memory/3568-2-0x0000000000231000-0x0000000000248000-memory.dmp

Filesize
92KB

Download
memory/3568-4-0x0000000000230000-0x00000000008CB000-memory.dmp

Filesize
6.6MB

Download
memory/3568-5-0x0000000000230000-0x00000000008CB000-memory.dmp

Filesize
6.6MB

Download