Malware Analysis Report

2025-01-03 05:45

Sample ID 240729-yfxvja1gjh
Target 5bf9369147fa4f4a5528f20de752b693_JaffaCakes118
SHA256 bf9a13955b43f7792ef27afb91dc9385ce90ddfb79932ca3bbc4fd0b5acdcbeb
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

bf9a13955b43f7792ef27afb91dc9385ce90ddfb79932ca3bbc4fd0b5acdcbeb

Threat Level: Known bad

The file 5bf9369147fa4f4a5528f20de752b693_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

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-29 19:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 19:44

Reported

2024-07-29 21:43

Platform

win7-20240704-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_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\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.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
RU 80.87.201.221:7080 tcp

Files

memory/2732-4-0x0000000000030000-0x0000000000040000-memory.dmp

memory/2732-0-0x0000000000230000-0x0000000000242000-memory.dmp

memory/2732-7-0x0000000000020000-0x000000000002F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 19:44

Reported

2024-07-29 21:53

Platform

win10v2004-20240729-en

Max time kernel

135s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_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\WerEnc\ETWESEProviderResources.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\WerEnc\ETWESEProviderResources.exe C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_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\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WerEnc\ETWESEProviderResources.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5bf9369147fa4f4a5528f20de752b693_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerEnc\ETWESEProviderResources.exe

"C:\Windows\SysWOW64\WerEnc\ETWESEProviderResources.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 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 128.92.203.42:80 tcp
FR 37.187.161.206:8080 tcp
TH 202.29.239.162:443 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
IE 52.111.236.23:443 tcp
RU 80.87.201.221:7080 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
AR 190.188.245.242:80 tcp
US 12.163.208.58:80 tcp

Files

memory/2968-4-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2968-0-0x00000000009B0000-0x00000000009C2000-memory.dmp

memory/2968-7-0x00000000001F0000-0x00000000001FF000-memory.dmp

C:\Windows\SysWOW64\WerEnc\ETWESEProviderResources.exe

MD5 5bf9369147fa4f4a5528f20de752b693
SHA1 745bcceb6d760967596236d2564bf7bceabb44e9
SHA256 bf9a13955b43f7792ef27afb91dc9385ce90ddfb79932ca3bbc4fd0b5acdcbeb
SHA512 ff27ffc8b87ff94da79902b5fe29d7d36458014cbd6111a632b8cb536e165aaa02ff0c09f2a67cc881ea5b7945b69354d9ce7d5c6b6d7d8c54c7e1335067d08a

memory/2968-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1340-14-0x00000000004E0000-0x00000000004F0000-memory.dmp

memory/1340-10-0x00000000004B0000-0x00000000004C2000-memory.dmp