Malware Analysis Report

2024-10-18 21:13

Sample ID 240708-vjeatayfql
Target 2d1f214498962554fa5c66f49528fe0c_JaffaCakes118
SHA256 05eb4e6daaf8de2723fe1c261b010ad32d0329c32e1e70503397802bb7a3cc3a
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

05eb4e6daaf8de2723fe1c261b010ad32d0329c32e1e70503397802bb7a3cc3a

Threat Level: Known bad

The file 2d1f214498962554fa5c66f49528fe0c_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 17:00

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-08 17:00

Reported

2024-07-09 00:40

Platform

win7-20240705-en

Max time kernel

129s

Max time network

140s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d1f214498962554fa5c66f49528fe0c_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\Ufpbyeunatqynetf\wixdnkjhprgezmq.qvo 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 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2888 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2564 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2564 wrote to memory of 2660 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\2d1f214498962554fa5c66f49528fe0c_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d1f214498962554fa5c66f49528fe0c_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ufpbyeunatqynetf\wixdnkjhprgezmq.qvo",HBSpECQiUYnab

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ufpbyeunatqynetf\wixdnkjhprgezmq.qvo",#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/2756-0-0x0000000000210000-0x0000000000231000-memory.dmp

memory/2756-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2756-2-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2564-3-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2564-4-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2660-5-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2660-6-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2660-7-0x0000000010000000-0x0000000010024000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-08 17:00

Reported

2024-07-09 00:40

Platform

win10v2004-20240704-en

Max time kernel

138s

Max time network

96s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d1f214498962554fa5c66f49528fe0c_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\Fbyhdysgqibasqh\lwkpyveceosxva.asx 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 820 wrote to memory of 1832 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 820 wrote to memory of 1832 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 820 wrote to memory of 1832 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1832 wrote to memory of 432 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1832 wrote to memory of 432 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1832 wrote to memory of 432 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\2d1f214498962554fa5c66f49528fe0c_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d1f214498962554fa5c66f49528fe0c_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Fbyhdysgqibasqh\lwkpyveceosxva.asx",sQEwudvI

Network

Country Destination Domain Proto
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1832-0-0x0000000000970000-0x0000000000991000-memory.dmp

memory/1832-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/1832-3-0x0000000010000000-0x0000000010024000-memory.dmp

C:\Windows\SysWOW64\Fbyhdysgqibasqh\lwkpyveceosxva.asx

MD5 2d1f214498962554fa5c66f49528fe0c
SHA1 2df9112e594eb72c613223ecbc0b24593774dcac
SHA256 05eb4e6daaf8de2723fe1c261b010ad32d0329c32e1e70503397802bb7a3cc3a
SHA512 9453512c67cc7568e14c26cb96b23c7d40c48000a2eb67dd9be68a34efad4cc89d1712280224349bb2662967b9008699d7280ac6fb5516f9be9efa919dfe8952