stealc | e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891f

General

Target

e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe
Size

1.7MB
MD5

767a84cf35929f4ac66e5fc5bf6e2d10
SHA1

154061d06e48dce743e99ea2e4d908f215bd2c83
SHA256

e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891f
SHA512

357b05ca372847eaa21c7750513c5c541f57e0113c7b1d5ce00f245d9b547f122d4ae097e61d2796009c6b3ca2367272cd83c2b044473774e58ba2ec185261ae
SSDEEP

24576:yO4pr/GAiO+YQp4wLMdMNxsyFDuh3aqUYJXLc1xAyURNmXmVeqFluiCrdrf1swJO:LI9iBYQjQyF6h3tP2aZ0mV5EiC9Dx

Score

10^/10

stealc brat discovery evasion 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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.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	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.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
2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2692	2396	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	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.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	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe
2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2692	2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe	32
PID 2396 wrote to memory of 2692	2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe	32
PID 2396 wrote to memory of 2692	2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe	32
PID 2396 wrote to memory of 2692	2396	e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe	32

C:\Users\Admin\AppData\Local\Temp\e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.exe
"C:\Users\Admin\AppData\Local\Temp\e019cf39c2653269ec04ca536d0d8cee1803c8dbaeea6b8c8cfa13734a2d891fN.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:2396
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 928
  2⤵
  - Program crash
  PID:2692

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/2396-0-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-2-0x0000000000E51000-0x0000000000E68000-memory.dmp

Filesize
92KB

Download
memory/2396-3-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-1-0x0000000077230000-0x0000000077232000-memory.dmp

Filesize
8KB

Download
memory/2396-4-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-5-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-6-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-7-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-8-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-9-0x0000000000E50000-0x00000000014F0000-memory.dmp

Filesize
6.6MB

Download
memory/2396-10-0x0000000000E50000-0x00000000014F0000-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