Malware Analysis Report

2024-11-30 22:28

Sample ID 241028-cmb1raxgmc
Target 7725fccbae0011ec120a5851d37ef819_JaffaCakes118
SHA256 b8b8444f5857f7cdb7224c19eb5bafb17cd5f25ea041b467766487c7321494c6
Tags
dridex 22202 botnet discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b8b8444f5857f7cdb7224c19eb5bafb17cd5f25ea041b467766487c7321494c6

Threat Level: Known bad

The file 7725fccbae0011ec120a5851d37ef819_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22202 botnet discovery loader

Dridex family

Dridex

Dridex Loader

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-28 02:11

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-28 02:11

Reported

2024-10-28 02:13

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

138s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

Signatures

Dridex

botnet dridex

Dridex family

dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2364 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2364 wrote to memory of 3004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3004 -ip 3004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

memory/3004-0-0x0000000074B00000-0x0000000074B30000-memory.dmp

memory/3004-2-0x0000000001000000-0x0000000001006000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-28 02:11

Reported

2024-10-28 02:13

Platform

win7-20240903-en

Max time kernel

119s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

Signatures

Dridex

botnet dridex

Dridex family

dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7725fccbae0011ec120a5851d37ef819_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 220

Network

N/A

Files

memory/1952-2-0x0000000000390000-0x0000000000396000-memory.dmp

memory/1952-0-0x0000000074660000-0x0000000074690000-memory.dmp

memory/1952-3-0x0000000074660000-0x0000000074690000-memory.dmp