stealc | e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5

General

Target

e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
Size

1.8MB
MD5

3b63896570d897a201dc7c3599ed3d8c
SHA1

6e8250c1b80c92e7f65ee51f0a25ff97e2b0b7db
SHA256

e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5
SHA512

7447ba816e00afefba8aeaa43dae1a8b8e41d22b9dc4b152808bbf2e0c68fc32ee51957ed31c880883bc4fd697c4e99efdbb57553009ecb580350fcb47f35beb
SSDEEP

49152:M4hsZXNpHnuoijlp85WyH93aAHz+U5F5:M4spDBWyd39Hzl

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__	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.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\VideoBiosVersion	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Wine	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.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
3836	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3404	3836	WerFault.exe	81

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	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.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	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3836	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
3836	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
3836	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
3836	e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe

C:\Users\Admin\AppData\Local\Temp\e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.exe
"C:\Users\Admin\AppData\Local\Temp\e6214a7d639adc535d21ff1833ea771b0f3bef7eece29d853aa7b0ae29a621e5.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:3836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3836 -s 1472
  2⤵
  - Program crash
  PID:3404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3836 -ip 3836
1⤵
PID:3904

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/3836-0-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-1-0x0000000077BD4000-0x0000000077BD6000-memory.dmp

Filesize
8KB

Download
memory/3836-2-0x00000000005F1000-0x0000000000608000-memory.dmp

Filesize
92KB

Download
memory/3836-3-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-4-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-5-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-6-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-7-0x00000000005F0000-0x0000000000CA2000-memory.dmp

Filesize
6.7MB

Download
memory/3836-8-0x00000000005F0000-0x0000000000CA2000-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