Malware Analysis Report

2024-10-18 21:16

Sample ID 240713-d8yx3swgmb
Target 400d7a6db84fcce506d40c63f355ee00_JaffaCakes118
SHA256 f67dc278ebd15c092d568a89b295be3da17887b100cc562ee9b5d20f0d0bc91f
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: 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

f67dc278ebd15c092d568a89b295be3da17887b100cc562ee9b5d20f0d0bc91f

Threat Level: Known bad

The file 400d7a6db84fcce506d40c63f355ee00_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: RenamesItself

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-13 03:41

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-13 03:41

Reported

2024-07-13 03:43

Platform

win7-20240705-en

Max time kernel

148s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\400d7a6db84fcce506d40c63f355ee00_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 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2112 wrote to memory of 1628 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\400d7a6db84fcce506d40c63f355ee00_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\400d7a6db84fcce506d40c63f355ee00_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/1628-0-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1628-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1628-1-0x0000000000100000-0x000000000011F000-memory.dmp

memory/1628-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-13 03:41

Reported

2024-07-13 03:43

Platform

win10v2004-20240709-en

Max time kernel

94s

Max time network

100s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\400d7a6db84fcce506d40c63f355ee00_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\Tycrebmjz\awygorti.rtj 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 2516 wrote to memory of 3996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2516 wrote to memory of 3996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2516 wrote to memory of 3996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3996 wrote to memory of 2932 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3996 wrote to memory of 2932 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3996 wrote to memory of 2932 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\400d7a6db84fcce506d40c63f355ee00_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\400d7a6db84fcce506d40c63f355ee00_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Tycrebmjz\awygorti.rtj",tHFC

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 22.160.190.20.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.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 83.210.23.2.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/3996-1-0x00000000012D0000-0x00000000012EF000-memory.dmp

memory/3996-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/3996-4-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Tycrebmjz\awygorti.rtj

MD5 400d7a6db84fcce506d40c63f355ee00
SHA1 e4779ce48763854fa7924b109a98b0fbc85931d1
SHA256 f67dc278ebd15c092d568a89b295be3da17887b100cc562ee9b5d20f0d0bc91f
SHA512 a16bb305c5b748a291b6eb1bd4b0b90a3ab47febf550e76911e829b86a3e8c04315675de8fef9143eefa02d54b3cb0635a7ac21abfab088338502e2b64fc0532