Malware Analysis Report

2024-10-18 21:16

Sample ID 240713-a8wk6syclr
Target 3f8fab643bae4135cf01556a0a0f691e_JaffaCakes118
SHA256 985505480bcb96488f2332798797afc7b01e9e4e7f4c55d1962019d35c864ef5
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

985505480bcb96488f2332798797afc7b01e9e4e7f4c55d1962019d35c864ef5

Threat Level: Known bad

The file 3f8fab643bae4135cf01556a0a0f691e_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 00:53

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-13 00:53

Reported

2024-07-13 00:56

Platform

win7-20240705-en

Max time kernel

148s

Max time network

149s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f8fab643bae4135cf01556a0a0f691e_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 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2976 wrote to memory of 2200 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\3f8fab643bae4135cf01556a0a0f691e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f8fab643bae4135cf01556a0a0f691e_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/2200-0-0x0000000000170000-0x000000000018F000-memory.dmp

memory/2200-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2200-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2200-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-13 00:53

Reported

2024-07-13 00:56

Platform

win10v2004-20240709-en

Max time kernel

133s

Max time network

139s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f8fab643bae4135cf01556a0a0f691e_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\Adayexmnuz\cxypbbxoi.vnd 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 4924 wrote to memory of 544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4924 wrote to memory of 544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4924 wrote to memory of 544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 544 wrote to memory of 3568 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 544 wrote to memory of 3568 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 544 wrote to memory of 3568 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\3f8fab643bae4135cf01556a0a0f691e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f8fab643bae4135cf01556a0a0f691e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Adayexmnuz\cxypbbxoi.vnd",IDrAJBEVyha

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/544-0-0x0000000000510000-0x000000000052F000-memory.dmp

memory/544-1-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Adayexmnuz\cxypbbxoi.vnd

MD5 3f8fab643bae4135cf01556a0a0f691e
SHA1 ccffb7cc4573600d740e17096981c04975603429
SHA256 985505480bcb96488f2332798797afc7b01e9e4e7f4c55d1962019d35c864ef5
SHA512 4f518e82183a185f0d1e8d90fc62cb5cfea9bd532d4ba0d52c149042f8031e242e4670a6fd86db155b6e3ae748ace5a4f58ff8d42dfcde128293a1f0019d1e1f

memory/544-3-0x0000000010000000-0x0000000010023000-memory.dmp