Malware Analysis Report

2024-11-30 22:28

Sample ID 241029-gkbpeswemf
Target 7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118
SHA256 3f73a3884f63aed2129e107f23a33b58bd46b357a54618b4577fc862a8b23ac3
Tags
dridex 22203 botnet discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

3f73a3884f63aed2129e107f23a33b58bd46b357a54618b4577fc862a8b23ac3

Threat Level: Known bad

The file 7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22203 botnet discovery loader

Dridex

Dridex family

Dridex Loader

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-29 05:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-29 05:51

Reported

2024-10-29 05:53

Platform

win7-20240708-en

Max time kernel

120s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bff5016cd06a6fe1bdfdb438797ee5d_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\7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2172 -s 220

Network

N/A

Files

memory/2172-0-0x0000000000190000-0x0000000000196000-memory.dmp

memory/2172-1-0x00000000752B0000-0x00000000752E0000-memory.dmp

memory/2172-3-0x0000000000190000-0x0000000000196000-memory.dmp

memory/2172-2-0x00000000752B0000-0x00000000752E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-29 05:51

Reported

2024-10-29 05:53

Platform

win10v2004-20241007-en

Max time kernel

137s

Max time network

145s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bff5016cd06a6fe1bdfdb438797ee5d_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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4836 wrote to memory of 4752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4836 wrote to memory of 4752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4836 wrote to memory of 4752 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\7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\7bff5016cd06a6fe1bdfdb438797ee5d_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4752 -ip 4752

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 624

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/4752-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/4752-1-0x0000000075210000-0x0000000075240000-memory.dmp

memory/4752-3-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/4752-2-0x0000000075210000-0x0000000075240000-memory.dmp