Malware Analysis Report

2024-10-18 21:14

Sample ID 240712-cfl75swgjf
Target 3b9879a2b98b430201ac1b1adf538412_JaffaCakes118
SHA256 71a4629a208d5b772a7fc9f22d3a8b6bb8bbb7cb68b70b5a3bc1f1ccf009ccbb
Tags
emotet epoch1 banker trojan
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

71a4629a208d5b772a7fc9f22d3a8b6bb8bbb7cb68b70b5a3bc1f1ccf009ccbb

Threat Level: Known bad

The file 3b9879a2b98b430201ac1b1adf538412_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker trojan

Emotet

Blocklisted process makes network request

Loads dropped DLL

Drops file in System32 directory

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-12 02:01

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-12 02:01

Reported

2024-07-12 02:03

Platform

win7-20240704-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

Signatures

Emotet

trojan banker emotet

Blocklisted process makes network request

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

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2032 wrote to memory of 2080 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\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
RO 84.232.229.24:80 tcp
RO 84.232.229.24:80 tcp
FR 51.255.203.164:8080 tcp
FR 51.255.203.164:8080 tcp
DE 217.160.169.110:8080 tcp
DE 217.160.169.110:8080 tcp

Files

memory/2080-0-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2080-2-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2080-1-0x0000000000150000-0x0000000000171000-memory.dmp

memory/2080-3-0x0000000010000000-0x0000000010024000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-12 02:01

Reported

2024-07-12 02:03

Platform

win10v2004-20240709-en

Max time kernel

150s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

Signatures

Emotet

trojan banker emotet

Loads dropped DLL

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Dlebdsywvdmyrh\wdagdsvgnmpuh.sfy C:\Windows\SysWOW64\rundll32.exe N/A

Enumerates physical storage devices

Suspicious behavior: RenamesItself

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2356 wrote to memory of 216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2356 wrote to memory of 216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 216 wrote to memory of 2172 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 216 wrote to memory of 2172 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 216 wrote to memory of 2172 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b9879a2b98b430201ac1b1adf538412_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dlebdsywvdmyrh\wdagdsvgnmpuh.sfy",KLDqwNhGE

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/216-0-0x0000000000A30000-0x0000000000A51000-memory.dmp

memory/216-1-0x0000000010000000-0x0000000010024000-memory.dmp

C:\Windows\SysWOW64\Dlebdsywvdmyrh\wdagdsvgnmpuh.sfy

MD5 3b9879a2b98b430201ac1b1adf538412
SHA1 407eb9ea11debeb66558b092017cb337297ab4d4
SHA256 71a4629a208d5b772a7fc9f22d3a8b6bb8bbb7cb68b70b5a3bc1f1ccf009ccbb
SHA512 9b3dcef5eed07c194c6a77d5f0df217e8abc17850a3f82601a3723fe6464f488be9deafa7e10a84a39765c4fa38f87d17e764d09f364d5731f25d4cb7cc79a04

memory/216-4-0x0000000010000000-0x0000000010024000-memory.dmp