Malware Analysis Report

2024-10-18 21:13

Sample ID 240712-dfkvrayara
Target 3bbd1005751afe77958e3c2fbc703ba1_JaffaCakes118
SHA256 dfc71bb44e01e7fcb006e64cbd5f65ae23bc1095319319cc586532f804d90c66
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

dfc71bb44e01e7fcb006e64cbd5f65ae23bc1095319319cc586532f804d90c66

Threat Level: Known bad

The file 3bbd1005751afe77958e3c2fbc703ba1_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

2024-07-12 02:57

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-12 02:57

Reported

2024-07-12 02:59

Platform

win7-20240705-en

Max time kernel

133s

Max time network

143s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bbd1005751afe77958e3c2fbc703ba1_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\Hpwkx\ksyw.rxo 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 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2676 wrote to memory of 2524 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2524 wrote to memory of 2380 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2380 wrote to memory of 624 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\3bbd1005751afe77958e3c2fbc703ba1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bbd1005751afe77958e3c2fbc703ba1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hpwkx\ksyw.rxo",cUGcMwgEQE

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hpwkx\ksyw.rxo",#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/2524-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2524-0-0x0000000000140000-0x0000000000161000-memory.dmp

memory/2524-2-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2380-4-0x0000000010000000-0x0000000010024000-memory.dmp

memory/2380-3-0x0000000010000000-0x000000001005D000-memory.dmp

memory/2380-5-0x0000000010000000-0x0000000010024000-memory.dmp

memory/624-6-0x0000000010000000-0x0000000010024000-memory.dmp

memory/624-7-0x0000000010000000-0x0000000010024000-memory.dmp

memory/624-8-0x0000000010000000-0x0000000010024000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-12 02:57

Reported

2024-07-12 02:59

Platform

win10v2004-20240709-en

Max time kernel

131s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bbd1005751afe77958e3c2fbc703ba1_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\Fokeeanazaiphv\etqpyojyhttap.but 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 3596 wrote to memory of 3816 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3596 wrote to memory of 3816 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3596 wrote to memory of 3816 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3816 wrote to memory of 1444 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3816 wrote to memory of 1444 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3816 wrote to memory of 1444 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\3bbd1005751afe77958e3c2fbc703ba1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3bbd1005751afe77958e3c2fbc703ba1_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Fokeeanazaiphv\etqpyojyhttap.but",cuzXNriNfpL

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 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3816-1-0x0000000010000000-0x0000000010024000-memory.dmp

memory/3816-0-0x0000000000AE0000-0x0000000000B01000-memory.dmp

memory/3816-3-0x0000000010000000-0x0000000010024000-memory.dmp

C:\Windows\SysWOW64\Fokeeanazaiphv\etqpyojyhttap.but

MD5 3bbd1005751afe77958e3c2fbc703ba1
SHA1 419e670108c6a11752c30288d644d558d71160bc
SHA256 dfc71bb44e01e7fcb006e64cbd5f65ae23bc1095319319cc586532f804d90c66
SHA512 17e2dc7c64bfa6be428957d4b6fa010968cfb608d03611d62ff18d4d759627b3bfe49ff4cff5a544846029e53ce5d26c6be547828218b94aa1e0759cd87673a8