stealc | 0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 19:26

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General

Target

0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe
Size

2.8MB
MD5

1ba71e6ac42d53bd5272efa4776e5b37
SHA1

bd3526f61226508c54321ce57b04ada2e0b8847f
SHA256

0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619
SHA512

75ad779fb631cdc9fa906949e45ad006d15863aa8a6d4f5e6a8dae51a5e4a81d192ff5f4666e2d443fb11308e29534728300774a9bc8c602d3563636074f5d3c
SSDEEP

24576:UJtTur+5Csubdf3ro1SEqtXM+TJ2a4bjskE5xKYGiu89zP+08zb9zoriLM34Xrw3:GurboItc+X4brWKNS9bY0dcwnmWn1F

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__	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.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\VideoBiosVersion	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
536	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.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	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
536	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe
536	0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe

C:\Users\Admin\AppData\Local\Temp\0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.exe
"C:\Users\Admin\AppData\Local\Temp\0a3e1ccdabd62cca6ee7b8a13d6090cf89aa8505162736f844f263b163ca7619.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:536

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/536-0-0x00000000003F0000-0x00000000008EE000-memory.dmp

Filesize
5.0MB

Download
memory/536-1-0x00000000778C4000-0x00000000778C6000-memory.dmp

Filesize
8KB

Download
memory/536-2-0x00000000003F1000-0x0000000000408000-memory.dmp

Filesize
92KB

Download
memory/536-3-0x00000000003F0000-0x00000000008EE000-memory.dmp

Filesize
5.0MB

Download
memory/536-4-0x00000000003F0000-0x00000000008EE000-memory.dmp

Filesize
5.0MB

Download