stealc | 13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f

General

Target

13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe
Size

1.8MB
MD5

bd69fc5f0eb734a6f98ae23084cef0fe
SHA1

ac60e6f73aaf9fcafb655fe4e6c149381c624864
SHA256

13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f
SHA512

14d0e1a9889b591971f33bcc57b397f82155fab7de786cce54d6224f29811ebc261c2cdd16c319fcd8dcb9422712b628591859e370663aaf84c49fea249436f4
SSDEEP

49152:BFP0ugcPpwraDOFk8Bhc9hM+WL68YzilpK9bhWLZ2NUzr:/0BK/O+8Bq9DJ8escqX

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__	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.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	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.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
2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2964	2676	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	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.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	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe
2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2964	2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe	31
PID 2676 wrote to memory of 2964	2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe	31
PID 2676 wrote to memory of 2964	2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe	31
PID 2676 wrote to memory of 2964	2676	13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe	31

C:\Users\Admin\AppData\Local\Temp\13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.exe
"C:\Users\Admin\AppData\Local\Temp\13983cb8bac3f68b1f885dab402b1ccce8afdb8f2f118eb2e502b6da794a9d9f.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:2676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 924
  2⤵
  - Program crash
  PID:2964

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/2676-0-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-1-0x0000000077C40000-0x0000000077C42000-memory.dmp

Filesize
8KB

Download
memory/2676-2-0x0000000000D81000-0x0000000000D98000-memory.dmp

Filesize
92KB

Download
memory/2676-3-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-4-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-5-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-6-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-7-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-8-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-9-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-10-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download
memory/2676-11-0x0000000000D80000-0x0000000001436000-memory.dmp

Filesize
6.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads