Malware Analysis Report

2024-09-23 06:18

Sample ID 240616-yhwegsvcpe
Target 2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia
SHA256 d2e89e95fd9c866dbd1523b31fa7f5fa65cb9a72bb35b845ea61034fc3a34146
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

d2e89e95fd9c866dbd1523b31fa7f5fa65cb9a72bb35b845ea61034fc3a34146

Threat Level: Known bad

The file 2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor persistence ransomware

GandCrab payload

Gandcrab

Detects ransomware indicator

Detects Reflective DLL injection artifacts

Gandcrab Payload

Adds Run key to start application

Enumerates connected drives

Program crash

Unsigned PE

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-16 19:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 19:47

Reported

2024-06-16 19:50

Platform

win7-20240508-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.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

Gandcrab

ransomware backdoor gandcrab

Detects Reflective DLL injection artifacts

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

Detects ransomware indicator

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

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\adojexaqbkh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\nxvvjt.exe\"" C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.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\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2036 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1568 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1720 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1720 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1720 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 1720 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2204 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2204 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2204 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe
PID 2036 wrote to memory of 2204 N/A C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe C:\Windows\SysWOW64\nslookup.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.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/2036-2-0x0000000000240000-0x0000000000257000-memory.dmp

memory/2036-1-0x0000000000400000-0x0000000001400000-memory.dmp

memory/2036-9-0x0000000000400000-0x0000000001400000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 19:47

Reported

2024-06-16 19:50

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe"

Signatures

GandCrab payload

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

Gandcrab

ransomware backdoor gandcrab

Detects Reflective DLL injection artifacts

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

Detects ransomware indicator

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

Gandcrab Payload

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

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-16_1e2a8e1d7ef4f1b6afcfca6ff0dc0923_karagany_mafia.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1584 -ip 1584

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 480

Network

Files

memory/1584-2-0x000000000AA70000-0x000000000AA87000-memory.dmp

memory/1584-1-0x0000000000400000-0x0000000001400000-memory.dmp