Malware Analysis Report

2024-09-22 22:14

Sample ID 240616-cxnsaswbrf
Target b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118
SHA256 5fff3289b5d2703a12bc80751e3c6af54877ca6458f349910b0166abcf0c0c45
Tags
emotet epoch1 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

5fff3289b5d2703a12bc80751e3c6af54877ca6458f349910b0166abcf0c0c45

Threat Level: Known bad

The file b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker trojan

Emotet

Emotet payload

Executes dropped EXE

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-16 02:27

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 02:27

Reported

2024-06-16 02:30

Platform

win7-20240611-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Emotet payload

trojan banker
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\SystemPropertiesProtection\msftedit.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\SystemPropertiesProtection\msftedit.exe C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe"

C:\Windows\SysWOW64\SystemPropertiesProtection\msftedit.exe

"C:\Windows\SysWOW64\SystemPropertiesProtection\msftedit.exe"

Network

Country Destination Domain Proto
US 12.163.208.58:80 tcp
US 12.163.208.58:80 tcp
US 45.33.35.74:8080 tcp
US 45.33.35.74:8080 tcp
DE 87.106.253.248:8080 tcp
DE 87.106.253.248:8080 tcp
US 192.241.146.84:8080 tcp

Files

memory/1704-0-0x0000000000360000-0x0000000000372000-memory.dmp

memory/1704-7-0x0000000000240000-0x000000000024F000-memory.dmp

memory/1704-4-0x0000000000250000-0x0000000000260000-memory.dmp

C:\Windows\SysWOW64\SystemPropertiesProtection\msftedit.exe

MD5 b1545fc828ab71ab65e1cef039a798cc
SHA1 c6a3dd7779754ff1bdb77311f1e95e71be96e395
SHA256 5fff3289b5d2703a12bc80751e3c6af54877ca6458f349910b0166abcf0c0c45
SHA512 532feea6e6da4c26064d8dad833459dd4494756e5a94a2dbfe04ddf2b794b3db4094e171d713ede16545eec1fd16d64f586413b634f863706dd2ab9b967f2244

memory/1704-9-0x0000000000400000-0x0000000000484000-memory.dmp

memory/2280-14-0x0000000000270000-0x0000000000280000-memory.dmp

memory/2280-10-0x0000000000250000-0x0000000000262000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 02:27

Reported

2024-06-16 02:30

Platform

win10v2004-20240611-en

Max time kernel

136s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe"

Signatures

Emotet

trojan banker emotet

Emotet payload

trojan banker
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\puiapi\wecutil.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\puiapi\wecutil.exe C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe N/A
N/A N/A C:\Windows\SysWOW64\puiapi\wecutil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b1545fc828ab71ab65e1cef039a798cc_JaffaCakes118.exe"

C:\Windows\SysWOW64\puiapi\wecutil.exe

"C:\Windows\SysWOW64\puiapi\wecutil.exe"

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
BE 23.41.178.65:443 www.bing.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 65.178.41.23.in-addr.arpa udp
US 12.163.208.58:80 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 45.33.35.74:8080 tcp
DE 87.106.253.248:8080 tcp
US 192.241.146.84:8080 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
NL 190.115.18.139:8080 tcp
US 65.36.62.20:80 tcp

Files

memory/1908-0-0x00000000020D0000-0x00000000020E2000-memory.dmp

memory/1908-4-0x00000000020F0000-0x0000000002100000-memory.dmp

memory/1908-7-0x0000000000640000-0x000000000064F000-memory.dmp

memory/1908-9-0x0000000000400000-0x0000000000484000-memory.dmp

C:\Windows\SysWOW64\puiapi\wecutil.exe

MD5 b1545fc828ab71ab65e1cef039a798cc
SHA1 c6a3dd7779754ff1bdb77311f1e95e71be96e395
SHA256 5fff3289b5d2703a12bc80751e3c6af54877ca6458f349910b0166abcf0c0c45
SHA512 532feea6e6da4c26064d8dad833459dd4494756e5a94a2dbfe04ddf2b794b3db4094e171d713ede16545eec1fd16d64f586413b634f863706dd2ab9b967f2244

memory/4820-14-0x00000000006B0000-0x00000000006C0000-memory.dmp

memory/4820-10-0x00000000022D0000-0x00000000022E2000-memory.dmp