stealc | 94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434

General

Target

94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe
Size

1.7MB
MD5

3529de18a7cfbf22934e8e5649191f0a
SHA1

8e68e2a7c6d9d3bcd73ed770b7d3feea218a7ac4
SHA256

94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434
SHA512

dc8ed4173ce5581503757e6771f88ec4192494eea789edb291e5d63aab245d521fb1998529b8610c69738f40895a77589d07e9775a8709176789cd7a41916391
SSDEEP

49152:7zvn17j4qD06OKaR+/huk58aelzeM0y0L51L:3N7WNauk5Z8z5Q5

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__	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.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	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.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
2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2616	2356	WerFault.exe	29

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	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.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	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe
2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2616	2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe	32
PID 2356 wrote to memory of 2616	2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe	32
PID 2356 wrote to memory of 2616	2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe	32
PID 2356 wrote to memory of 2616	2356	94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe	32

C:\Users\Admin\AppData\Local\Temp\94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.exe
"C:\Users\Admin\AppData\Local\Temp\94801efab05e51fbd82cec7ea6f1eb216cc83fa9548222d4031880e3b71bd434.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
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 928
  2⤵
  - Program crash
  PID:2616

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/2356-0-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-1-0x0000000077270000-0x0000000077272000-memory.dmp

Filesize
8KB

Download
memory/2356-2-0x0000000000DF1000-0x0000000000E08000-memory.dmp

Filesize
92KB

Download
memory/2356-3-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-4-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-5-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-6-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-7-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-8-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-9-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-10-0x0000000000DF0000-0x000000000147E000-memory.dmp

Filesize
6.6MB

Download
memory/2356-11-0x0000000000DF0000-0x000000000147E000-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