stealc | 9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981

General

Target

9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
Size

1.7MB
MD5

95e3a28f64d91f27436fbb8dbb855dcf
SHA1

6621e1f4113cd9778e714b4d9fa16e60439fd14c
SHA256

9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981
SHA512

8583d33935de635a40f49417f5f65f22f3d7a8ec5c92db7f5c938d2ab01e8a6d3ceb77b9b700b658f4b179e12f680ed3b2dfcd29c3b0709df509916734a5c537
SSDEEP

49152:3d/Y9hyDTXBAHPQglSOwiaDHi9iOFSTi0v:t/iIBAHPQglSl+iO

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__	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.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	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.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	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.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
4600	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2108	4600	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	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.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	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4600	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
4600	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
4600	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
4600	9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe

C:\Users\Admin\AppData\Local\Temp\9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.exe
"C:\Users\Admin\AppData\Local\Temp\9cc2fd42a0b78fa5508ed4613f0ccd7037193d87264d74dc5ca4f32446285981.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:4600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4600 -s 1476
  2⤵
  - Program crash
  PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4600 -ip 4600
1⤵
PID:768

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/4600-0-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-1-0x00000000774E4000-0x00000000774E6000-memory.dmp

Filesize
8KB

Download
memory/4600-2-0x0000000000A81000-0x0000000000A98000-memory.dmp

Filesize
92KB

Download
memory/4600-3-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-4-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-5-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-6-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-7-0x0000000000A80000-0x0000000001111000-memory.dmp

Filesize
6.6MB

Download
memory/4600-8-0x0000000000A80000-0x0000000001111000-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