stealc | 1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae

Analysis

max time kernel
94s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 04:55

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General

Target

EIB3A_file.exe
Size

1.7MB
MD5

d2156fe745a5dbf3303a799a82d736e0
SHA1

04530b3ff60a8d706ffcc2ec0d7df2ae0ea1377d
SHA256

1ecff112836437d181652efe29d69f6970b6bd8d9ec924f2fad5a03874d960ae
SHA512

4aca71a25c6599961f20a058c4106981cbc375aae567b0cc6e361391716a37dac7ac079baa40036406a0d6d9376d36a8cb73b7d275b5c5c17571e2650d044829
SSDEEP

24576:K5O4xwSRvGX7Oa2le2aX7vp79zM/o11AU/S0fg106etQmxzNwOP17m2wTpJn/EEQ:GRvAO+2wbpRM/AOySgG0Fjwu7mbl6T

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

Processes:

EIB3A_file.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ EIB3A_file.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	EIB3A_file.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

Processes:

EIB3A_file.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	EIB3A_file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	EIB3A_file.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

Processes:

EIB3A_file.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine EIB3A_file.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

EIB3A_file.exe

pid process

336 EIB3A_file.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

Processes:

EIB3A_file.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EIB3A_file.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

EIB3A_file.exe

pid process

336 EIB3A_file.exe
336 EIB3A_file.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Wine	EIB3A_file.exe

pid	process
336	EIB3A_file.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EIB3A_file.exe

pid	process
336	EIB3A_file.exe
336	EIB3A_file.exe

C:\Users\Admin\AppData\Local\Temp\EIB3A_file.exe
"C:\Users\Admin\AppData\Local\Temp\EIB3A_file.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:336

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

Replay Monitor

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Downloads

memory/336-0-0x0000000000EC0000-0x0000000001555000-memory.dmp

Filesize
6.6MB

Download
memory/336-1-0x0000000077274000-0x0000000077276000-memory.dmp

Filesize
8KB

Download
memory/336-2-0x0000000000EC1000-0x0000000000ED8000-memory.dmp

Filesize
92KB

Download
memory/336-3-0x0000000000EC0000-0x0000000001555000-memory.dmp

Filesize
6.6MB

Download
memory/336-5-0x0000000000EC0000-0x0000000001555000-memory.dmp

Filesize
6.6MB

Download