Malware Analysis Report

2024-10-18 21:14

Sample ID 240708-z4dbgaygrm
Target 2dd3d159bf5e55168a4e35ac5e23ea70_JaffaCakes118
SHA256 d6db5786967bc747a5f2072b0071485c240a6a9689deb803afebcf22a35ad609
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

d6db5786967bc747a5f2072b0071485c240a6a9689deb803afebcf22a35ad609

Threat Level: Known bad

The file 2dd3d159bf5e55168a4e35ac5e23ea70_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: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-08 21:15

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-08 21:15

Reported

2024-07-09 03:55

Platform

win7-20240708-en

Max time kernel

130s

Max time network

141s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2dd3d159bf5e55168a4e35ac5e23ea70_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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\Kazsfyjseib\ifdvjqiiys.nuv C:\Windows\SysWOW64\rundll32.exe N/A

Enumerates physical storage devices

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 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 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2468 wrote to memory of 1868 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1868 wrote to memory of 1056 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1056 wrote to memory of 2176 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\2dd3d159bf5e55168a4e35ac5e23ea70_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2dd3d159bf5e55168a4e35ac5e23ea70_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kazsfyjseib\ifdvjqiiys.nuv",szxv

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kazsfyjseib\ifdvjqiiys.nuv",#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/1868-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/1868-0-0x0000000000110000-0x0000000000131000-memory.dmp

memory/1868-2-0x0000000010000000-0x0000000010024000-memory.dmp

memory/1056-3-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2176-4-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2176-5-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2176-6-0x0000000010000000-0x0000000010024000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-08 21:15

Reported

2024-07-09 03:56

Platform

win10v2004-20240704-en

Max time kernel

133s

Max time network

131s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2dd3d159bf5e55168a4e35ac5e23ea70_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\Cdpnnvwkeuk\aunbgtbqxb.drz 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 404 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 404 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 404 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1732 wrote to memory of 1620 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1732 wrote to memory of 1620 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1732 wrote to memory of 1620 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\2dd3d159bf5e55168a4e35ac5e23ea70_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2dd3d159bf5e55168a4e35ac5e23ea70_JaffaCakes118.dll,#1

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4624,i,10426317566413639638,17907471819827662535,262144 --variations-seed-version --mojo-platform-channel-handle=4372 /prefetch:8

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Cdpnnvwkeuk\aunbgtbqxb.drz",gzgkLZffJ

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 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1732-0-0x0000000001310000-0x0000000001331000-memory.dmp

memory/1732-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/1732-3-0x0000000010000000-0x0000000010024000-memory.dmp

C:\Windows\SysWOW64\Cdpnnvwkeuk\aunbgtbqxb.drz

MD5 2dd3d159bf5e55168a4e35ac5e23ea70
SHA1 f485ef3c033a9a8f37880d7cf19ccdf10229dc3d
SHA256 d6db5786967bc747a5f2072b0071485c240a6a9689deb803afebcf22a35ad609
SHA512 807f592e88e403990ae91651c7f274f9b2fe565f54adf9246539aa61382b860a5361a24a4aa76a796368d39c5a4983c149a715a5ea67d5d306e3343c270c1f88