Malware Analysis Report

2024-09-09 18:07

Sample ID 240618-sf5mgsyelh
Target bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118
SHA256 336c75dce6a6517eef5e6203cdfeb1a6432799222c14b22da78f4cdd06ef328d
Tags
discovery evasion persistence privilege_escalation trojan
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

336c75dce6a6517eef5e6203cdfeb1a6432799222c14b22da78f4cdd06ef328d

Threat Level: Shows suspicious behavior

The file bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery evasion persistence privilege_escalation trojan

Event Triggered Execution: Component Object Model Hijacking

Checks installed software on the system

Checks whether UAC is enabled

Unsigned PE

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Modifies Internet Explorer settings

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-18 15:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-18 15:05

Reported

2024-06-18 15:07

Platform

win7-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe"

Signatures

Event Triggered Execution: Component Object Model Hijacking

persistence privilege_escalation

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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\ = "TinyJSObject Class" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ServerExecutable = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version\ = "1.0" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib\ = "{7E77E9F2-D76B-4D54-B515-9A7F93DF03DF}" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Programmable C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0 C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5} C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ = "ITinyJSObject" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040} C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_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\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe"

Network

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

Files

memory/1700-2-0x0000000000BD0000-0x0000000000D54000-memory.dmp

memory/1700-11-0x0000000000BD0000-0x0000000000D54000-memory.dmp

memory/1700-10-0x0000000000BD0000-0x0000000000D54000-memory.dmp

memory/1700-9-0x0000000000BD0000-0x0000000000D54000-memory.dmp

memory/1700-12-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1700-14-0x0000000000180000-0x0000000000181000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 15:05

Reported

2024-06-18 15:07

Platform

win10v2004-20240508-en

Max time kernel

125s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\bc935f7f15ff54ea0a93b188f15efe35_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4164,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8

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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 3.166.122.92.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 200.79.70.13.in-addr.arpa udp

Files

memory/3516-2-0x0000000002FC0000-0x0000000003144000-memory.dmp

memory/3516-9-0x0000000002FC0000-0x0000000003144000-memory.dmp