stealc | 061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9

General

Target

061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe
Size

1.7MB
MD5

d9042c7a0f23f6c96c2c3916578075b9
SHA1

49f8c19ca3e5cb7a2afa1adeca4f524bc04c413a
SHA256

061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9
SHA512

44d99185d439d0dbfd081a310e7884dbee1411a046c5150737b86e2ca5d4cdaf7f636899539c69e55da80d9169b4397ed1714de29337c2e590d36f741dcca7f6
SSDEEP

24576:tShd8kOeH2qagYmIexcN1CGD86AgC/4iOyN8r2PU7C8HnzOhK78FYel/n0OXIk7R:O8VeH2qFY5eaC+8FwyTArCkMYeNvQL

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__	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.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	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.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
2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2576	2320	WerFault.exe	30

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	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.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	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe
2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2576	2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe	32
PID 2320 wrote to memory of 2576	2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe	32
PID 2320 wrote to memory of 2576	2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe	32
PID 2320 wrote to memory of 2576	2320	061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe	32

C:\Users\Admin\AppData\Local\Temp\061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.exe
"C:\Users\Admin\AppData\Local\Temp\061343b0e76bd4ad0db5b8e44dcaca203dc2f15f867886f201aa38cf8554a2b9.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:2320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 940
  2⤵
  - Program crash
  PID:2576

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/2320-0-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-1-0x0000000076F20000-0x0000000076F22000-memory.dmp

Filesize
8KB

Download
memory/2320-2-0x0000000001271000-0x0000000001288000-memory.dmp

Filesize
92KB

Download
memory/2320-3-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-4-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-5-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-6-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-7-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-8-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-9-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-10-0x0000000001270000-0x0000000001904000-memory.dmp

Filesize
6.6MB

Download
memory/2320-11-0x0000000001270000-0x0000000001904000-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