Malware Analysis Report

2025-01-03 05:44

Sample ID 240729-yb29fs1emf
Target 5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118
SHA256 97e1c517c52d83fc64141c5e0df35470fc20f4e14cc884d0855a78845e3a30a7
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

97e1c517c52d83fc64141c5e0df35470fc20f4e14cc884d0855a78845e3a30a7

Threat Level: Known bad

The file 5ba499f94f2b6bd3dd8267fbd19f93a6_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

Unsigned PE

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 19:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-29 19:37

Reported

2024-07-29 21:39

Platform

win7-20240729-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\tapiui\shunimpl.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\tapiui\shunimpl.exe C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_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:\Windows\SysWOW64\tapiui\shunimpl.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe"

C:\Windows\SysWOW64\tapiui\shunimpl.exe

"C:\Windows\SysWOW64\tapiui\shunimpl.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/2212-0-0x00000000002B0000-0x00000000002C2000-memory.dmp

memory/2212-7-0x0000000000020000-0x000000000002F000-memory.dmp

memory/2212-4-0x0000000000030000-0x0000000000040000-memory.dmp

C:\Windows\SysWOW64\tapiui\shunimpl.exe

MD5 5ba499f94f2b6bd3dd8267fbd19f93a6
SHA1 e4a1f373d0bf52a66ac4515283f0dd1fe9988fec
SHA256 97e1c517c52d83fc64141c5e0df35470fc20f4e14cc884d0855a78845e3a30a7
SHA512 1f2331a9c98688f8af2658d4b4bcee3aed0e153898f991376ad89efe00bdd95da544318ce25bd85c563a24a250c504ed9fe27be7da0c3ebbf588aa8092f258eb

memory/2212-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1692-10-0x0000000000230000-0x0000000000242000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-29 19:37

Reported

2024-07-29 21:38

Platform

win10v2004-20240729-en

Max time kernel

135s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_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\winbio\ExplorerFrame.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\winbio\ExplorerFrame.exe C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_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\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\winbio\ExplorerFrame.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\5ba499f94f2b6bd3dd8267fbd19f93a6_JaffaCakes118.exe"

C:\Windows\SysWOW64\winbio\ExplorerFrame.exe

"C:\Windows\SysWOW64\winbio\ExplorerFrame.exe"

Network

Country Destination Domain Proto
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 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.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 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
RU 80.87.201.221:7080 tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
AR 190.188.245.242:80 tcp
US 12.163.208.58:80 tcp

Files

memory/2784-4-0x0000000000670000-0x0000000000680000-memory.dmp

memory/2784-1-0x0000000000540000-0x0000000000552000-memory.dmp

memory/2784-7-0x00000000001F0000-0x00000000001FF000-memory.dmp

C:\Windows\SysWOW64\winbio\ExplorerFrame.exe

MD5 5ba499f94f2b6bd3dd8267fbd19f93a6
SHA1 e4a1f373d0bf52a66ac4515283f0dd1fe9988fec
SHA256 97e1c517c52d83fc64141c5e0df35470fc20f4e14cc884d0855a78845e3a30a7
SHA512 1f2331a9c98688f8af2658d4b4bcee3aed0e153898f991376ad89efe00bdd95da544318ce25bd85c563a24a250c504ed9fe27be7da0c3ebbf588aa8092f258eb

memory/2784-9-0x0000000000400000-0x0000000000428000-memory.dmp