Malware Analysis Report

2024-09-22 22:14

Sample ID 240616-rkw1gawema
Target b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118
SHA256 21712bed013d1437631a7766bc34bf0e5dba14ca96b6647e3f71c9a64eb73e21
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

21712bed013d1437631a7766bc34bf0e5dba14ca96b6647e3f71c9a64eb73e21

Threat Level: Known bad

The file b3efc6386a9cdeba0fd699e80eea838e_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

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: RenamesItself

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-16 14:15

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 14:15

Reported

2024-06-16 14:18

Platform

win7-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_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\deskmon\winbrand.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\deskmon\winbrand.exe C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_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\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe"

C:\Windows\SysWOW64\deskmon\winbrand.exe

"C:\Windows\SysWOW64\deskmon\winbrand.exe"

Network

Country Destination Domain Proto
US 155.186.0.121:80 tcp
US 155.186.0.121:80 tcp
DE 51.38.124.206:80 51.38.124.206 tcp
NL 82.196.15.205:8080 tcp
NL 82.196.15.205:8080 tcp
US 38.88.126.202:8080 tcp
US 38.88.126.202:8080 tcp

Files

memory/3068-4-0x00000000003B0000-0x00000000003C0000-memory.dmp

memory/3068-0-0x0000000000390000-0x00000000003A2000-memory.dmp

memory/3068-7-0x0000000000380000-0x000000000038F000-memory.dmp

C:\Windows\SysWOW64\deskmon\winbrand.exe

MD5 b3efc6386a9cdeba0fd699e80eea838e
SHA1 8760b94f9309dfc9957a871f51cee770e0f57ae2
SHA256 21712bed013d1437631a7766bc34bf0e5dba14ca96b6647e3f71c9a64eb73e21
SHA512 4ba9a8a8afc8ed13b43b87a744d8e12ce2585f527629e5975a12f9314c0448db4c0a8db434bee92c342ab564e55138a62bffdd6dd6750576ff331d13bfb88650

memory/3068-9-0x0000000000400000-0x0000000000476000-memory.dmp

memory/2004-14-0x0000000000520000-0x0000000000530000-memory.dmp

memory/2004-10-0x0000000000500000-0x0000000000512000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 14:15

Reported

2024-06-16 14:18

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_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\wavemsp\winmsipc.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\wavemsp\winmsipc.exe C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_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\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b3efc6386a9cdeba0fd699e80eea838e_JaffaCakes118.exe"

C:\Windows\SysWOW64\wavemsp\winmsipc.exe

"C:\Windows\SysWOW64\wavemsp\winmsipc.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
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 155.186.0.121:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
DE 51.38.124.206:80 51.38.124.206 tcp
US 8.8.8.8:53 206.124.38.51.in-addr.arpa udp
NL 82.196.15.205:8080 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 38.88.126.202:8080 tcp
MY 219.92.13.25:80 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
ID 111.67.77.202:8080 tcp
TR 95.9.180.128:80 tcp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

memory/5072-4-0x0000000002510000-0x0000000002520000-memory.dmp

memory/5072-7-0x00000000024E0000-0x00000000024EF000-memory.dmp

memory/5072-0-0x00000000024F0000-0x0000000002502000-memory.dmp

memory/5072-9-0x0000000000400000-0x0000000000476000-memory.dmp

C:\Windows\SysWOW64\wavemsp\winmsipc.exe

MD5 b3efc6386a9cdeba0fd699e80eea838e
SHA1 8760b94f9309dfc9957a871f51cee770e0f57ae2
SHA256 21712bed013d1437631a7766bc34bf0e5dba14ca96b6647e3f71c9a64eb73e21
SHA512 4ba9a8a8afc8ed13b43b87a744d8e12ce2585f527629e5975a12f9314c0448db4c0a8db434bee92c342ab564e55138a62bffdd6dd6750576ff331d13bfb88650

memory/3964-14-0x0000000002330000-0x0000000002340000-memory.dmp

memory/3964-10-0x0000000002310000-0x0000000002322000-memory.dmp