Malware Analysis Report

2025-01-03 05:45

Sample ID 240729-rkfngswejb
Target 4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118
SHA256 b166392d99fa54a30a8688d0b508b6aaf91c089d4f562c05837c95deb24e235e
Tags
emotet epoch1 banker discovery 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

b166392d99fa54a30a8688d0b508b6aaf91c089d4f562c05837c95deb24e235e

Threat Level: Known bad

The file 4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 banker discovery trojan

Emotet

Emotet payload

Executes dropped EXE

Drops file in System32 directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 14:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 14:14

Reported

2024-07-29 21:31

Platform

win7-20240729-en

Max time kernel

129s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe"

C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe

"C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe"

Network

Country Destination Domain Proto
US 128.92.203.42:80 tcp
US 128.92.203.42:80 tcp
FR 37.187.161.206:8080 tcp
FR 37.187.161.206:8080 tcp
TH 202.29.239.162:443 tcp
TH 202.29.239.162:443 tcp

Files

memory/2336-7-0x0000000000020000-0x000000000002F000-memory.dmp

memory/2336-4-0x0000000000030000-0x0000000000040000-memory.dmp

memory/2336-0-0x0000000000230000-0x0000000000242000-memory.dmp

memory/2336-8-0x0000000000400000-0x000000000041C000-memory.dmp

C:\Windows\SysWOW64\sdchange\NlsLexicons0018.exe

MD5 4b4944db928dae16e404b48cf6fa1fc2
SHA1 75da926373dcb0271be92160661845909da5c345
SHA256 b166392d99fa54a30a8688d0b508b6aaf91c089d4f562c05837c95deb24e235e
SHA512 83b56edb3c3bdc2c467552f408ddcba3c4e65cfe097d7a786b68f689f47dea6dbbc67a4a1732c7c6837fe7d54143dae84c18bff69d0288c48e442266995d47c5

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 14:14

Reported

2024-07-29 21:26

Platform

win10v2004-20240709-en

Max time kernel

138s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4b4944db928dae16e404b48cf6fa1fc2_JaffaCakes118.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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 128.92.203.42:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
FR 37.187.161.206:8080 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
TH 202.29.239.162:443 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
IE 52.111.236.21:443 tcp
RU 80.87.201.221:7080 tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
AR 190.188.245.242:80 tcp
US 12.163.208.58:80 tcp

Files

memory/3240-4-0x0000000000E70000-0x0000000000E80000-memory.dmp

memory/3240-1-0x0000000000E50000-0x0000000000E62000-memory.dmp

memory/3240-7-0x00000000009F0000-0x00000000009FF000-memory.dmp