Malware Analysis Report

2024-09-23 06:05

Sample ID 240610-x9nchsybjj
Target 9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118
SHA256 3d86689de8b418238a637b022cd8035dd54751a7d955616804ffdb6cb29ba205
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

3d86689de8b418238a637b022cd8035dd54751a7d955616804ffdb6cb29ba205

Threat Level: Known bad

The file 9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gandcrab backdoor persistence ransomware

Gandcrab

GandCrab payload

Adds Run key to start application

Enumerates connected drives

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-10 19:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 19:33

Reported

2024-06-10 19:35

Platform

win7-20240508-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_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
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\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\mwtqysrnnqw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\P: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\R: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\G: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\I: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\J: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\K: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\L: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\O: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\X: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\Y: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\A: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\Q: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\U: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\W: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\Z: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\B: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\H: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\M: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\N: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\S: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\T: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\E: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
File opened (read-only) \??\V: C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2252 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe
PID 2252 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe C:\Windows\SysWOW64\nslookup.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe"

C:\Windows\SysWOW64\nslookup.exe

nslookup zonealarm.bit ns1.corp-servers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns2.corp-servers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup zonealarm.bit ns2.corp-servers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns1.corp-servers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup zonealarm.bit ns1.corp-servers.ru

C:\Windows\SysWOW64\nslookup.exe

nslookup ransomware.bit ns2.corp-servers.ru

Network

Country Destination Domain Proto
US 8.8.8.8:53 ipv4bot.whatismyipaddress.com udp
US 8.8.8.8:53 ns1.corp-servers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 ns2.corp-servers.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.corp-servers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 ns1.corp-servers.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.corp-servers.ru udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 zonealarm.bit udp
US 8.8.8.8:53 ns2.corp-servers.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/2252-3-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2252-2-0x00000000002A0000-0x00000000003A0000-memory.dmp

memory/2252-4-0x0000000000270000-0x0000000000287000-memory.dmp

memory/2252-1-0x0000000000400000-0x0000000000C0A000-memory.dmp

memory/2252-6-0x0000000000400000-0x0000000000C0A000-memory.dmp

memory/2252-14-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2252-13-0x00000000002A0000-0x00000000003A0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 19:33

Reported

2024-06-10 19:35

Platform

win10v2004-20240426-en

Max time kernel

95s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_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

Gandcrab

ransomware backdoor gandcrab

Processes

C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\9b5ea4a7f23751f6c5b662751f37ab03_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2080 -ip 2080

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 464

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/2080-4-0x0000000000DC0000-0x0000000000EC0000-memory.dmp

memory/2080-5-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2080-2-0x0000000000DA0000-0x0000000000DB7000-memory.dmp

memory/2080-1-0x0000000000400000-0x0000000000C0A000-memory.dmp