stealc | 6b8fa00a8bde6feb8e78b866950f14f6388c07f267c66b1e5dc2b8e399c21c9a

Analysis

max time kernel
94s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/11/2024, 19:32

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General

Target

file.exe
Size

2.0MB
MD5

1eaa5775a1249b88fe38b16e03c1f79f
SHA1

16f6fc4941ebbece1d8fd40b4300da31675d497c
SHA256

6b8fa00a8bde6feb8e78b866950f14f6388c07f267c66b1e5dc2b8e399c21c9a
SHA512

49c8ba781b43c38de9ee3906fa8d69d642ca3a64050fa219193f4f859d982b6ef9a1c20e96cb80be505cc1b5a9351cd9588b5015c82fdf4e910197a0339bb09d
SSDEEP

49152:uperXvdkKFuegDPYSfJ/vIMMMk3M9AZWbb16ZxMXp+bvExcNr:9XlkILUnIdDEbsm+bjNr

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__	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Wine	file.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4768	file.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3776	4768	WerFault.exe	84

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	file.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4768	file.exe
4768	file.exe
4768	file.exe
4768	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 1480
  2⤵
  - Program crash
  PID:3776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4768 -ip 4768
1⤵
PID:748

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/4768-0-0x0000000000F60000-0x0000000001682000-memory.dmp

Filesize
7.1MB

Download
memory/4768-1-0x00000000770C4000-0x00000000770C6000-memory.dmp

Filesize
8KB

Download
memory/4768-2-0x0000000000F61000-0x0000000000FC9000-memory.dmp

Filesize
416KB

Download
memory/4768-3-0x0000000000F60000-0x0000000001682000-memory.dmp

Filesize
7.1MB

Download
memory/4768-4-0x0000000000F60000-0x0000000001682000-memory.dmp

Filesize
7.1MB

Download
memory/4768-5-0x0000000000F60000-0x0000000001682000-memory.dmp

Filesize
7.1MB

Download