Malware Analysis Report

2025-01-03 05:44

Sample ID 240729-yjcc1axcnj
Target 5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118
SHA256 7c4b19cd857ae15b8a8d85ccc5951666dd9e00e60b86dbf1396e07432f74b045
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

7c4b19cd857ae15b8a8d85ccc5951666dd9e00e60b86dbf1396e07432f74b045

Threat Level: Known bad

The file 5c23db1256ed0c2bdfc78d0cc9509ad4_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 19:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 19:48

Reported

2024-07-29 21:58

Platform

win7-20240729-en

Max time kernel

141s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_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\mfc140rus\WerFault.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\mfc140rus\WerFault.exe C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_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\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mfc140rus\WerFault.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe"

C:\Windows\SysWOW64\mfc140rus\WerFault.exe

"C:\Windows\SysWOW64\mfc140rus\WerFault.exe"

Network

Country Destination Domain Proto
US 192.81.38.31:80 tcp
US 192.81.38.31:80 tcp
PL 51.75.33.127:80 51.75.33.127 tcp
CZ 37.157.196.117:7080 tcp
CZ 37.157.196.117:7080 tcp
DE 116.202.23.3:8080 tcp
DE 116.202.23.3:8080 tcp
FR 54.37.42.48:8080 tcp
FR 54.37.42.48:8080 tcp
IT 2.36.95.106:80 tcp
IT 2.36.95.106:80 tcp

Files

memory/1928-4-0x0000000000250000-0x0000000000260000-memory.dmp

memory/1928-0-0x0000000000230000-0x0000000000242000-memory.dmp

memory/1928-7-0x0000000000220000-0x000000000022F000-memory.dmp

memory/1928-9-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Windows\SysWOW64\mfc140rus\WerFault.exe

MD5 5c23db1256ed0c2bdfc78d0cc9509ad4
SHA1 20824426bf095942a3362a86279234ca195e7d58
SHA256 7c4b19cd857ae15b8a8d85ccc5951666dd9e00e60b86dbf1396e07432f74b045
SHA512 cdff12cd8b7e304cac37aaf7f412c7276d05fdc5547a42122fed1cab2f87653ac615d359799bf514bab88789b652cbff2c4c75a01b668fa0974e412c0037470f

memory/2224-14-0x0000000000240000-0x0000000000250000-memory.dmp

memory/2224-10-0x00000000003C0000-0x00000000003D2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 19:48

Reported

2024-07-29 21:59

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_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\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5c23db1256ed0c2bdfc78d0cc9509ad4_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 192.81.38.31:80 tcp
PL 51.75.33.127:80 51.75.33.127 tcp
US 8.8.8.8:53 127.33.75.51.in-addr.arpa udp
CZ 37.157.196.117:7080 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
DE 116.202.23.3:8080 tcp
FR 54.37.42.48:8080 tcp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
IT 2.36.95.106:80 tcp
CL 186.103.141.250:443 tcp
US 192.241.146.84:8080 tcp
N/A 94.176.234.118:443 tcp

Files

memory/3076-0-0x0000000000790000-0x00000000007A2000-memory.dmp

memory/3076-4-0x00000000007B0000-0x00000000007C0000-memory.dmp

memory/3076-7-0x0000000000780000-0x000000000078F000-memory.dmp