Malware Analysis Report

2024-10-19 10:15

Sample ID 240407-tfamsagb7v
Target e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118
SHA256 d71c91ef899d8906e2e19e55aa9986fb649b9aeb06eab32e390c38156074cfd9
Tags
dridex 22201 botnet loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

d71c91ef899d8906e2e19e55aa9986fb649b9aeb06eab32e390c38156074cfd9

Threat Level: Known bad

The file e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-07 15:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 15:59

Reported

2024-04-07 16:02

Platform

win7-20240221-en

Max time kernel

140s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

Signatures

Dridex

botnet 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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 308

Network

N/A

Files

memory/1720-0-0x0000000075200000-0x0000000075230000-memory.dmp

memory/1720-1-0x00000000001F0000-0x00000000001F6000-memory.dmp

memory/1720-2-0x0000000075200000-0x0000000075230000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 15:59

Reported

2024-04-07 16:02

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

155s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

Signatures

Dridex

botnet 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1020 wrote to memory of 3172 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1020 wrote to memory of 3172 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1020 wrote to memory of 3172 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\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e54e4f3ddc6708a20fcf3d78fe837aa6_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3172 -ip 3172

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3172 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 66.112.168.52.in-addr.arpa udp

Files

memory/3172-0-0x00000000750D0000-0x0000000075100000-memory.dmp

memory/3172-1-0x0000000002830000-0x0000000002836000-memory.dmp