stealc | 49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149

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
12/12/2024, 08:30

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General

Target

49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe
Size

1.7MB
MD5

55e004e4ac047f9261b6d743eae2d2bc
SHA1

221872c16821c76a8fe37411df5e3d58f2c31061
SHA256

49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149
SHA512

1bbdaa2e6e4bc633a857b36a4b6e7d8c536cc51bae377233e95383c65f30dd33e213cff51509dc741bb37f6a1841a84ffc9d9e2d33e8f4b5c53fc049772092f0
SSDEEP

49152:EIyOyp7b77UXHswPvIiJwOSBMBYDzhSc9X:fyOy9XQsNg+ca

Score

10^/10

stealc stok discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.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	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Wine	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2224	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.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	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2224	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe
2224	49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe

C:\Users\Admin\AppData\Local\Temp\49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.exe
"C:\Users\Admin\AppData\Local\Temp\49911732f38d682da9361e89023ad01d31d677a3011533b23e8a9ae6a7dfc149.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:2224

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/2224-0-0x0000000000AD0000-0x0000000001158000-memory.dmp

Filesize
6.5MB

Download
memory/2224-1-0x0000000077414000-0x0000000077416000-memory.dmp

Filesize
8KB

Download
memory/2224-2-0x0000000000AD1000-0x0000000000AE8000-memory.dmp

Filesize
92KB

Download
memory/2224-3-0x0000000000AD0000-0x0000000001158000-memory.dmp

Filesize
6.5MB

Download
memory/2224-5-0x0000000000AD0000-0x0000000001158000-memory.dmp

Filesize
6.5MB

Download