stealc | 18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6

General

Target

18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
Size

1.7MB
MD5

47f94cb91b62a1b8c15cc59f00620295
SHA1

69b7205921385701da2ef5353d4471bb908a10b1
SHA256

18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6
SHA512

ec415675d3b1f68b47dd9a4d7d22d2cf9c58affa311f85cc23584206d75f7afd4abc493b03f7c25f07554f75c3a8d11fb7a9650900d4518901279748516ebfaa
SSDEEP

49152:LO9TucCpevSsXXaF71JCxhswFk12Idco:LX3pevKTCxdFk4Eco

Score

10^/10

stealc brat defense_evasion discovery stealer

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

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

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.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	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.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.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Wine	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.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
4028	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1484	4028	WerFault.exe	82

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	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.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	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4028	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
4028	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
4028	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
4028	18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe

C:\Users\Admin\AppData\Local\Temp\18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.exe
"C:\Users\Admin\AppData\Local\Temp\18d7ceccbd10b04d451cbf53bce1a5ba28e87052908905759721569d50f07cd6.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:4028
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 1400
  2⤵
  - Program crash
  PID:1484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4028 -ip 4028
1⤵
PID:1636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4028-0-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-1-0x0000000077964000-0x0000000077966000-memory.dmp

Filesize
8KB

Download
memory/4028-2-0x0000000000871000-0x0000000000888000-memory.dmp

Filesize
92KB

Download
memory/4028-3-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-4-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-5-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-6-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-7-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download
memory/4028-9-0x0000000000870000-0x0000000000F08000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads