Malware Analysis Report

2025-03-14 22:28

Sample ID 240407-3apn7ahe5z
Target e61836150d186cdace9ea40741b3f2a8_JaffaCakes118
SHA256 1373cfa205971203d09376bd67e3bd4b7dfb63f3485ae1fcf21de127328551b5
Tags
evasion persistence trojan
score
6/10

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
6/10

SHA256

1373cfa205971203d09376bd67e3bd4b7dfb63f3485ae1fcf21de127328551b5

Threat Level: Shows suspicious behavior

The file e61836150d186cdace9ea40741b3f2a8_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

evasion persistence trojan

Adds Run key to start application

Checks whether UAC is enabled

Unsigned PE

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 23:18

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 23:18

Reported

2024-04-07 23:21

Platform

win7-20240220-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\prunnet = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\prunnet = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

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\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 klite.ath.cx udp

Files

memory/1948-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/1948-3-0x0000000004980000-0x0000000004AF5000-memory.dmp

memory/1948-5-0x0000000004B00000-0x0000000004CE9000-memory.dmp

memory/1948-6-0x0000000000400000-0x000000000041C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RSAB58HZ\NewErrorPageTemplate[1]

MD5 cdf81e591d9cbfb47a7f97a2bcdb70b9
SHA1 8f12010dfaacdecad77b70a3e781c707cf328496
SHA256 204d95c6fb161368c795bb63e538fe0b11f9e406494bb5758b3b0d60c5f651bd
SHA512 977dcc2c6488acaf0e5970cef1a7a72c9f9dc6bb82da54f057e0853c8e939e4ab01b163eb7a5058e093a8bc44ecad9d06880fdc883e67e28ac67fee4d070a4cc

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CY2G78MW\errorPageStrings[1]

MD5 e3e4a98353f119b80b323302f26b78fa
SHA1 20ee35a370cdd3a8a7d04b506410300fd0a6a864
SHA256 9466d620dc57835a2475f8f71e304f54aee7160e134ba160baae0f19e5e71e66
SHA512 d8e4d73c76804a5abebd5dbc3a86dcdb6e73107b873175a8de67332c113fb7c4899890bf7972e467866fa4cd100a7e2a10a770e5a9c41cbf23b54351b771dcee

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RYNL6UIN\dnserrordiagoff[1]

MD5 47f581b112d58eda23ea8b2e08cf0ff0
SHA1 6ec1df5eaec1439573aef0fb96dabfc953305e5b
SHA256 b1c947d00db5fce43314c56c663dbeae0ffa13407c9c16225c17ccefc3afa928
SHA512 187383eef3d646091e9f68eff680a11c7947b3d9b54a78cc6de4a04629d7037e9c97673ac054a6f1cf591235c110ca181a6b69ecba0e5032168f56f4486fff92

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\I819HQXH\httpErrorPagesScripts[2]

MD5 3f57b781cb3ef114dd0b665151571b7b
SHA1 ce6a63f996df3a1cccb81720e21204b825e0238c
SHA256 46e019fa34465f4ed096a9665d1827b54553931ad82e98be01edb1ddbc94d3ad
SHA512 8cbf4ef582332ae7ea605f910ad6f8a4bc28513482409fa84f08943a72cac2cf0fa32b6af4c20c697e1fac2c5ba16b5a64a23af0c11eefbf69625b8f9f90c8fa

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 23:18

Reported

2024-04-07 23:21

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\prunnet = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\prunnet = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

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\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e61836150d186cdace9ea40741b3f2a8_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2064-0-0x0000000000400000-0x000000000041C000-memory.dmp

memory/2064-3-0x0000000000400000-0x000000000041C000-memory.dmp