Malware Analysis Report

2024-10-18 21:16

Sample ID 240715-1s14ts1drq
Target 4b925fde673191ef12628d15bf9e5273_JaffaCakes118
SHA256 25c9c88b50009676d6f97dd880f72e35510173be78ffd9ad728c2fb085e0b094
Tags
emotet epoch3 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

25c9c88b50009676d6f97dd880f72e35510173be78ffd9ad728c2fb085e0b094

Threat Level: Known bad

The file 4b925fde673191ef12628d15bf9e5273_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 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

2024-07-15 21:55

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-15 21:55

Reported

2024-07-15 21:58

Platform

win10v2004-20240709-en

Max time kernel

141s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b925fde673191ef12628d15bf9e5273_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\Txdduwrizbd\mkjamozzyq.fax 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 2652 wrote to memory of 1328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2652 wrote to memory of 1328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2652 wrote to memory of 1328 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1328 wrote to memory of 4884 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1328 wrote to memory of 4884 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1328 wrote to memory of 4884 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\4b925fde673191ef12628d15bf9e5273_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b925fde673191ef12628d15bf9e5273_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Txdduwrizbd\mkjamozzyq.fax",qleDKgezb

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
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 23.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 24.58.20.217.in-addr.arpa udp

Files

memory/1328-0-0x0000000001240000-0x000000000125F000-memory.dmp

memory/1328-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1328-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Txdduwrizbd\mkjamozzyq.fax

MD5 4b925fde673191ef12628d15bf9e5273
SHA1 4232f8cf8cd730655a7d26be459b8f016be622df
SHA256 25c9c88b50009676d6f97dd880f72e35510173be78ffd9ad728c2fb085e0b094
SHA512 4daa32eb8dc7476e8ef1b6f376784a92c81c7939d163bc5029ac081c937011fbd1bed2551ed0e0d147378b94820afb0f8871b9b1fb779374edab5265422de9d7

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-15 21:55

Reported

2024-07-15 21:58

Platform

win7-20240705-en

Max time kernel

148s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b925fde673191ef12628d15bf9e5273_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 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2868 wrote to memory of 2884 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\4b925fde673191ef12628d15bf9e5273_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b925fde673191ef12628d15bf9e5273_JaffaCakes118.dll,#1

Network

Country Destination Domain Proto
AR 190.55.186.229:80 tcp
AR 190.55.186.229:80 tcp
TH 203.157.152.9:7080 tcp
TH 203.157.152.9:7080 tcp
SG 157.245.145.87:443 tcp
SG 157.245.145.87:443 tcp

Files

memory/2884-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2884-0-0x00000000001B0000-0x00000000001CF000-memory.dmp

memory/2884-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2884-3-0x0000000010000000-0x0000000010023000-memory.dmp