Malware Analysis Report

2024-10-19 10:16

Sample ID 240406-wz7sqsfc7t
Target e2fba2437a486d48ee843b55a1a0363d_JaffaCakes118
SHA256 8b69e1003469494f9cc54b9dd850a1165206d8b01d58f5bb616b661832509513
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

8b69e1003469494f9cc54b9dd850a1165206d8b01d58f5bb616b661832509513

Threat Level: Known bad

The file e2fba2437a486d48ee843b55a1a0363d_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

2024-04-06 18:22

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 18:22

Reported

2024-04-06 18:25

Platform

win7-20240220-en

Max time kernel

140s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2fba2437a486d48ee843b55a1a0363d_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\e2fba2437a486d48ee843b55a1a0363d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2fba2437a486d48ee843b55a1a0363d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1292 -s 300

Network

N/A

Files

memory/1292-0-0x0000000074F20000-0x0000000074F50000-memory.dmp

memory/1292-1-0x00000000001A0000-0x00000000001A6000-memory.dmp

memory/1292-2-0x0000000074F20000-0x0000000074F50000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 18:22

Reported

2024-04-06 18:25

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

159s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2fba2437a486d48ee843b55a1a0363d_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 2396 wrote to memory of 3892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2396 wrote to memory of 3892 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2396 wrote to memory of 3892 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\e2fba2437a486d48ee843b55a1a0363d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2fba2437a486d48ee843b55a1a0363d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3892 -ip 3892

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 692

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 28.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 131.109.69.13.in-addr.arpa udp

Files

memory/3892-0-0x0000000000F10000-0x0000000000F16000-memory.dmp

memory/3892-1-0x0000000074DF0000-0x0000000074E20000-memory.dmp

memory/3892-4-0x0000000000F10000-0x0000000000F16000-memory.dmp