stealc | f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20

Analysis

max time kernel
94s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 15:02

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General

Target

f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe
Size

1.8MB
MD5

cd6989da78d758e1066490bbdca6c156
SHA1

8c7a2be631d1b360f66986e37d3ca1cc779805e2
SHA256

f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20
SHA512

b3eedd74fe93b5240cadef1797da6926cdf665284ae29d40e10c0fa2d109e5fbab78d1310bea064b259b93fb59b124b49b7a8d17a396e522a5dd556b13c9e2c7
SSDEEP

24576:JiOtJPPCOOKRbLtgQ5eBLrO6yxg34xeCT0TvpFP2nSvpJj4XqMWvsQcZ1NsAu9d2:Q8PcKh6LDyxPTkzIaNsQcZ1N3ub2

Score

10^/10

stealc mars discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

mars

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__	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.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	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Wine	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2180	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.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	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2180	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe
2180	f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe

C:\Users\Admin\AppData\Local\Temp\f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.exe
"C:\Users\Admin\AppData\Local\Temp\f4b3a3e58bfa294ae8509a9bd41f224e67eeb7a2919d49410f9fa018fdcb4e20.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:2180

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/2180-0-0x0000000000AE0000-0x0000000001189000-memory.dmp

Filesize
6.7MB

Download
memory/2180-1-0x0000000077624000-0x0000000077626000-memory.dmp

Filesize
8KB

Download
memory/2180-2-0x0000000000AE1000-0x0000000000AF8000-memory.dmp

Filesize
92KB

Download
memory/2180-3-0x0000000000AE0000-0x0000000001189000-memory.dmp

Filesize
6.7MB

Download
memory/2180-5-0x0000000000AE0000-0x0000000001189000-memory.dmp

Filesize
6.7MB

Download