Malware Analysis Report

2024-10-19 10:15

Sample ID 240404-bk433saf86
Target aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118
SHA256 8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0
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

8256436d8c0184c0566d594aab21931714c71217fbd20b4f53b1c4a58daaedd0

Threat Level: Known bad

The file aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-04 01:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 01:13

Reported

2024-04-04 01:15

Platform

win7-20240221-en

Max time kernel

141s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aba5b0df02c421887cd5899a1e3ee976_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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 244

Network

N/A

Files

memory/2220-0-0x0000000074990000-0x00000000749BF000-memory.dmp

memory/2220-1-0x0000000000190000-0x0000000000196000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 01:13

Reported

2024-04-04 01:15

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aba5b0df02c421887cd5899a1e3ee976_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 4408 wrote to memory of 1668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4408 wrote to memory of 1668 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4408 wrote to memory of 1668 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\aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aba5b0df02c421887cd5899a1e3ee976_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1668 -ip 1668

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 620

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 243.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 20.231.121.79:80 tcp
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 8.8.8.8:53 225.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 226.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/1668-0-0x0000000074A80000-0x0000000074AAF000-memory.dmp

memory/1668-1-0x0000000000F70000-0x0000000000F76000-memory.dmp