stealc | f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032

Analysis

max time kernel
92s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 03:19

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General

Target

f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe
Size

1.7MB
MD5

8c287fce1573479e65cbf66c48609da8
SHA1

afb805c99680be2ec2e12382aa30db63b5259e14
SHA256

f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032
SHA512

67c1856fca495d199b6786c820db18429f050792be8ce01139cfb6227c51169450e889377a4b673cd2b83a4adb984fad0178aebe656168b452d76c7f2cb9b8c8
SSDEEP

49152:prCkttH7saGakEFF2sYpAp4Tx/LiDYE0:prf15FKs6TNL

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__	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.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	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.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-1-5-21-940901362-3608833189-1915618603-1000\Software\Wine	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4252	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.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	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4252	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe
4252	f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe

C:\Users\Admin\AppData\Local\Temp\f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.exe
"C:\Users\Admin\AppData\Local\Temp\f5f9cfc7b37767cd37bc2ab65fff311cd996cdeedef53a1b6fe280cdc5e04032.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:4252

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/4252-0-0x0000000000910000-0x0000000000F9F000-memory.dmp

Filesize
6.6MB

Download
memory/4252-1-0x0000000077194000-0x0000000077196000-memory.dmp

Filesize
8KB

Download
memory/4252-2-0x0000000000911000-0x0000000000928000-memory.dmp

Filesize
92KB

Download
memory/4252-3-0x0000000000910000-0x0000000000F9F000-memory.dmp

Filesize
6.6MB

Download
memory/4252-4-0x0000000000910000-0x0000000000F9F000-memory.dmp

Filesize
6.6MB

Download