Malware Analysis Report

2024-10-16 03:30

Sample ID 240824-y5wzjaxemf
Target bf55d207f8fc30d80748ce6859a57448_JaffaCakes118
SHA256 0e44ac21fecfc084cf3477b567da07bf5700ee28b2a271288e27e2c55354a802
Tags
banload discovery downloader dropper evasion 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

0e44ac21fecfc084cf3477b567da07bf5700ee28b2a271288e27e2c55354a802

Threat Level: Known bad

The file bf55d207f8fc30d80748ce6859a57448_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

banload discovery downloader dropper evasion trojan

Banload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Checks BIOS information in registry

System Location Discovery: System Language Discovery

Modifies registry class

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-24 20:22

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-24 20:22

Reported

2024-08-24 20:25

Platform

win7-20240729-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe"

Signatures

Banload

trojan dropper downloader banload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe 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\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\InprocServer32\ThreadingModel = "Apartment" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\ProgID C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\ProgID\ = "ScriptletHandler.ASP" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635} C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\ = "Constructor for Scriptlet ASP Handler" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\InprocServer32\ = "C:\\Windows\\SysWOW64\\scrobj.dll" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe"

Network

N/A

Files

memory/2380-6-0x0000000002FA0000-0x00000000031A0000-memory.dmp

memory/2380-0-0x0000000002FA0000-0x00000000031A0000-memory.dmp

memory/2380-7-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-10-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-12-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-13-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-16-0x0000000002FA0000-0x00000000031A0000-memory.dmp

memory/2380-14-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-15-0x0000000000400000-0x000000000119D000-memory.dmp

memory/2380-17-0x0000000002FA0000-0x00000000031A0000-memory.dmp

memory/2380-19-0x0000000002FA0000-0x00000000031A0000-memory.dmp

memory/2380-20-0x0000000000400000-0x000000000119D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-24 20:22

Reported

2024-08-24 20:25

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe"

Signatures

Banload

trojan dropper downloader banload

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe 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\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635} C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\ = "PipePSFactory" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\InprocServer32 C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{773232D9-DAAE-7B84-F8C7-443DAE009635}\InprocServer32\ = "combase.dll" C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bf55d207f8fc30d80748ce6859a57448_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4304-1-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-2-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-8-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-11-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-13-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-17-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-14-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-16-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-15-0x0000000000400000-0x000000000119D000-memory.dmp

memory/4304-19-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-18-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-20-0x00000000034F0000-0x00000000036F0000-memory.dmp

memory/4304-21-0x0000000000400000-0x000000000119D000-memory.dmp