Malware Analysis Report

2025-03-14 22:37

Sample ID 240406-r25nyadb82
Target e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118
SHA256 fb213fda10fefd99b06672d38dc9710ab28023d6e7404461d7e54a29bca02bbd
Tags
evasion themida persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

fb213fda10fefd99b06672d38dc9710ab28023d6e7404461d7e54a29bca02bbd

Threat Level: Shows suspicious behavior

The file e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

evasion themida persistence

Identifies Wine through registry keys

Themida packer

Adds Run key to start application

Drops file in System32 directory

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Modifies Internet Explorer settings

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 14:42

Signatures

Themida packer

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 14:42

Reported

2024-04-06 14:44

Platform

win10v2004-20240226-en

Max time kernel

114s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Themida packer

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

Processes

C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_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 --mojo-platform-channel-handle=5380 --field-trial-handle=2272,i,17338911640954948469,1637568328132129119,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 98.56.20.217.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 28.143.109.104.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
DE 142.250.185.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 pki.goog udp
US 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 202.185.250.142.in-addr.arpa udp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/4036-0-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/4036-1-0x0000000000400000-0x00000000013BE000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 14:42

Reported

2024-04-06 14:44

Platform

win7-20240221-en

Max time kernel

149s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Themida packer

themida
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
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
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\GlobalFlagimglog = "C:\\Windows\\system32\\imglog.exe" C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\MEGATRON.ini C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\MEGATRON.ini C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\ponto.DLL C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Internet Explorer\TypedURLs C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e2c3f7aeacabdc518432be6ef59e2746_JaffaCakes118.exe"

Network

Country Destination Domain Proto
BR 201.76.55.8:1433 tcp

Files

memory/2196-0-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-1-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-2-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/2196-3-0x0000000007510000-0x0000000007511000-memory.dmp

C:\Windows\ponto.DLL

MD5 f0161328b321dfcba81d4516524b2781
SHA1 c65bdb62b67f4150f94d75fa64788d8f05b13859
SHA256 f37e10ca84be6e476d1164eca5b1d104f5dac890f02f5de701c61b86f19a1eae
SHA512 273f3bcd6cf80020ac85227184c05d4c901c07e3782e741ee5b8abb63f89171c632725de68f4b015ca902fec4268eaa1101ab8d9b7f592721e08b94a329ff672

memory/2196-12-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-22-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-26-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-30-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-31-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/2196-36-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-49-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-59-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-70-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-81-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-91-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-104-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-115-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-125-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-136-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-146-0x0000000000400000-0x00000000013BE000-memory.dmp

memory/2196-159-0x0000000000400000-0x00000000013BE000-memory.dmp