Malware Analysis Report

2024-09-23 06:18

Sample ID 240617-d285gawfqj
Target b68dc553317d59f38d4894455b991100_JaffaCakes118
SHA256 d1a4a07b17bbefbe6b7aef72a57ca0a46ace4ea79056ff570a28102aff8f8442
Tags
gandcrab backdoor persistence ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d1a4a07b17bbefbe6b7aef72a57ca0a46ace4ea79056ff570a28102aff8f8442

Threat Level: Known bad

The file b68dc553317d59f38d4894455b991100_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor persistence ransomware

Gandcrab

GandCrab payload

Enumerates connected drives

Adds Run key to start application

Unsigned PE

Program crash

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-17 03:31

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 03:31

Reported

2024-06-17 03:33

Platform

win7-20240508-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe"

Signatures

GandCrab payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Gandcrab

ransomware backdoor gandcrab

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\lqdsrzlwrib = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\kgurdg.exe\"" C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2128 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2632 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 1820 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2128 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe"

C:\Windows\SysWOW64\nslookup.exe

nslookup carder.bit ns1.wowservers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns2.wowservers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup carder.bit ns2.wowservers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns1.wowservers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup carder.bit ns1.wowservers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns2.wowservers.ru

Network

Country Destination Domain Proto
US 8.8.8.8:53 ipv4bot.whatismyipaddress.com udp
US 8.8.8.8:53 ns1.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 ns2.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ns2.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 ns1.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ns1.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 carder.bit udp
US 8.8.8.8:53 ns2.wowservers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp
US 8.8.8.8:53 ransomware.bit udp

Files

memory/2128-0-0x00000000002B0000-0x00000000002CB000-memory.dmp

memory/2128-1-0x0000000000400000-0x000000000042C000-memory.dmp

memory/2128-2-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2128-3-0x00000000002D0000-0x00000000002E7000-memory.dmp

memory/2128-5-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2128-13-0x0000000000400000-0x000000000042C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 03:31

Reported

2024-06-17 03:33

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe"

Signatures

GandCrab payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Gandcrab

ransomware backdoor gandcrab

Processes

C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b68dc553317d59f38d4894455b991100_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 548 -ip 548

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 488

Network

Files

memory/548-0-0x0000000002050000-0x000000000206B000-memory.dmp

memory/548-1-0x0000000000400000-0x000000000042C000-memory.dmp

memory/548-2-0x0000000000400000-0x0000000000449000-memory.dmp

memory/548-3-0x00000000020A0000-0x00000000020B7000-memory.dmp

memory/548-5-0x0000000000400000-0x0000000000449000-memory.dmp

memory/548-8-0x0000000002050000-0x000000000206B000-memory.dmp

memory/548-9-0x0000000000400000-0x000000000042C000-memory.dmp