Malware Analysis Report

2024-11-16 13:21

Sample ID 240613-fshl9syfnm
Target a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118
SHA256 b7c61606d19c84885ca8b60a051a01d79b63cbda5375cdfb6e82696fc1ae687a
Tags
discovery evasion persistence trojan
score
7/10

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
7/10

SHA256

b7c61606d19c84885ca8b60a051a01d79b63cbda5375cdfb6e82696fc1ae687a

Threat Level: Shows suspicious behavior

The file a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery evasion persistence trojan

Registers COM server for autorun

Checks whether UAC is enabled

Checks installed software on the system

Unsigned PE

Modifies Internet Explorer settings

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 05:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 05:07

Reported

2024-06-13 05:10

Platform

win7-20240611-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe"

Signatures

Registers COM server for autorun

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ServerExecutable = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A

Checks installed software on the system

discovery

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version\ = "1.0" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\HELPDIR C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ = "ITinyJSObject" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\Version = "1.0" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ServerExecutable = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib\ = "{7E77E9F2-D76B-4D54-B515-9A7F93DF03DF}" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040} C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\FLAGS C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ = "ITinyJSObject" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\ = "JSIELib" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\ = "{157B1AA6-3E5C-404A-9118-C1D91F537040}" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\FLAGS\ = "0" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\ = "{157B1AA6-3E5C-404A-9118-C1D91F537040}" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5} C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\ = "TinyJSObject Class" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Programmable C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0\win32 C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\Version = "1.0" C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 c1.allocal.info udp
US 8.8.8.8:53 r1.joburnt.net udp
US 8.8.8.8:53 c2.allocal.info udp
US 8.8.8.8:53 r2.joburnt.net udp

Files

memory/1052-2-0x00000000009A0000-0x0000000000AB1000-memory.dmp

memory/1052-11-0x00000000009A0000-0x0000000000AB1000-memory.dmp

memory/1052-10-0x00000000009A0000-0x0000000000AB1000-memory.dmp

memory/1052-9-0x00000000009A0000-0x0000000000AB1000-memory.dmp

memory/1052-12-0x0000000000260000-0x0000000000261000-memory.dmp

memory/1052-14-0x0000000000260000-0x0000000000261000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 05:07

Reported

2024-06-13 05:10

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

51s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a3ebb30f149f30d6ea3a3b43ee9d61ad_JaffaCakes118.exe"

Network

Files

memory/2252-2-0x0000000002AC0000-0x0000000002BD1000-memory.dmp

memory/2252-9-0x0000000002AC0000-0x0000000002BD1000-memory.dmp