stealc | 5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674

General

Target

5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe
Size

1.7MB
MD5

beb2d86ace5defe9212f50a4c834d6ed
SHA1

295255bcde6f317f1b7a8b960d5849f124c62e97
SHA256

5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674
SHA512

0114bbb95ab180d14530ef527c7e90601d6f17d9fbdf15598a79ad60ede17455890a566c892772c1c4a7f4d4c08aedc2ea5fbf335da41a74bb2c61c6364aef87
SSDEEP

49152:ecpmnJFIgqLGUuBrQNng0ccLyOqMduZNL:eMIJ1qLGUuiG0b7qPZ

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__	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.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	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.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
2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2952	2416	WerFault.exe	27

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	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.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	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe
2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2952	2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe	31
PID 2416 wrote to memory of 2952	2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe	31
PID 2416 wrote to memory of 2952	2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe	31
PID 2416 wrote to memory of 2952	2416	5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe	31

C:\Users\Admin\AppData\Local\Temp\5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.exe
"C:\Users\Admin\AppData\Local\Temp\5327c4e541c2c824e405208b6232d59e80a2adf820e993f9eb743a587f372674.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:2416
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 924
  2⤵
  - Program crash
  PID:2952

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/2416-0-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-1-0x0000000077C20000-0x0000000077C22000-memory.dmp

Filesize
8KB

Download
memory/2416-2-0x0000000000FB1000-0x0000000000FC8000-memory.dmp

Filesize
92KB

Download
memory/2416-3-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-4-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-5-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-6-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-7-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-8-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-9-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-10-0x0000000000FB0000-0x0000000001642000-memory.dmp

Filesize
6.6MB

Download
memory/2416-11-0x0000000000FB0000-0x0000000001642000-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