Malware Analysis Report

2024-10-18 21:15

Sample ID 240712-nz8q2avaqa
Target 3d432e7a90e87a561f97cee38afee39e_JaffaCakes118
SHA256 cfe8af9a3b091c5c0d5bf2860cdc8b4799ec19bd79d8632cc0d738b1ffd9afa9
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

cfe8af9a3b091c5c0d5bf2860cdc8b4799ec19bd79d8632cc0d738b1ffd9afa9

Threat Level: Known bad

The file 3d432e7a90e87a561f97cee38afee39e_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

2024-07-12 11:51

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-12 11:51

Reported

2024-07-12 11:53

Platform

win7-20240704-en

Max time kernel

130s

Max time network

145s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d432e7a90e87a561f97cee38afee39e_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 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1628 wrote to memory of 2176 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\3d432e7a90e87a561f97cee38afee39e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d432e7a90e87a561f97cee38afee39e_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/2176-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2176-0-0x00000000000B0000-0x00000000000CF000-memory.dmp

memory/2176-2-0x0000000010000000-0x0000000010023000-memory.dmp

memory/2176-3-0x0000000010000000-0x0000000010023000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-12 11:51

Reported

2024-07-12 11:53

Platform

win10v2004-20240709-en

Max time kernel

132s

Max time network

97s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d432e7a90e87a561f97cee38afee39e_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\Gwdfvrhq\outwabb.uhy 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 1324 wrote to memory of 1348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1324 wrote to memory of 1348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1324 wrote to memory of 1348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1348 wrote to memory of 2144 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1348 wrote to memory of 2144 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1348 wrote to memory of 2144 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\3d432e7a90e87a561f97cee38afee39e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d432e7a90e87a561f97cee38afee39e_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gwdfvrhq\outwabb.uhy",txDVclEZspJWt

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/1348-1-0x0000000010000000-0x0000000010023000-memory.dmp

memory/1348-0-0x0000000001040000-0x000000000105F000-memory.dmp

memory/1348-3-0x0000000010000000-0x0000000010023000-memory.dmp

C:\Windows\SysWOW64\Gwdfvrhq\outwabb.uhy

MD5 3d432e7a90e87a561f97cee38afee39e
SHA1 9b831840f6d66fa6acf442cf68f870592ce62ba7
SHA256 cfe8af9a3b091c5c0d5bf2860cdc8b4799ec19bd79d8632cc0d738b1ffd9afa9
SHA512 9135dd07cbb02d3b26c6129790efaffad60c1c1a0fa346a821b3ab89c33341d664096dddd0c25afb8cc1a7c5ae7066185b2f8f113ca6121bae1067edc422a287