stealc | b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345

Analysis

max time kernel
134s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2024, 04:10

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General

Target

b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe
Size

2.0MB
MD5

65ed3bcfe7c423aef11ad136275bab5f
SHA1

572cbb3be18d27ceacbcfedd09e40e51cfe598f7
SHA256

b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345
SHA512

329a3406855b4585dd7b2413afa0ad2307980aafa2b5c00cdce2a835dc2dcc7e83b439b6e5f94f512494f8737a67413e64a0a9ac726496381f2d98143bf3d672
SSDEEP

49152:ugTQ/XDgEihWyunJ01C4a5FAhgQlapKWg5zlq+uaAA+W:uL/TuC4a7p+aBg5zlyaALW

Score

10^/10

stealc tale discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

tale

http://185.215.113.206

Attributes

url_path
/6c4adf523b719729.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__	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.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	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3436	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.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	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3436	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe
3436	b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe

C:\Users\Admin\AppData\Local\Temp\b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.exe
"C:\Users\Admin\AppData\Local\Temp\b2aa0446dc6a4f25c4f083155b7b237d66a432f6255d65b85ab524f596935345.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:3436

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/3436-0-0x0000000000CE0000-0x00000000013F7000-memory.dmp

Filesize
7.1MB

Download
memory/3436-1-0x0000000076F94000-0x0000000076F96000-memory.dmp

Filesize
8KB

Download
memory/3436-2-0x0000000000CE1000-0x0000000000D49000-memory.dmp

Filesize
416KB

Download
memory/3436-3-0x0000000000CE0000-0x00000000013F7000-memory.dmp

Filesize
7.1MB

Download
memory/3436-5-0x0000000000CE0000-0x00000000013F7000-memory.dmp

Filesize
7.1MB

Download