Malware Analysis Report

2025-01-22 12:43

Sample ID 240622-2sgkvssdjm
Target 043d6a2a34792372f0d9965b6d28823c_JaffaCakes118
SHA256 46203df8b5a00c30b27849a69a1ac341fde43d6de8a390c51cc618d1a6f9a847
Tags
aspackv2
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

46203df8b5a00c30b27849a69a1ac341fde43d6de8a390c51cc618d1a6f9a847

Threat Level: Shows suspicious behavior

The file 043d6a2a34792372f0d9965b6d28823c_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2

ASPack v2.12-2.42

Drops file in System32 directory

Unsigned PE

Suspicious use of SetWindowsHookEx

Modifies registry class

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-22 22:50

Signatures

ASPack v2.12-2.42

aspackv2
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: behavioral1

Detonation Overview

Submitted

2024-06-22 22:50

Reported

2024-06-22 22:53

Platform

win7-20240221-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File created \??\c:\windows\SysWOW64\yytmp1\22312250550\mu22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\22312250550\lk22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\22312250550\fj22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\22312250550\mu22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\22312250550\lk22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\22312250550\sx22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\22312250550\22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\22312250550\fj22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsinid.files\25.bmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\22312250550\sx22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\22312250550\22312250550.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\ = "ÓÑÒæÎÄÊé" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.yws C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.yws\ = "ywsfile" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version\ = "7.0.1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe %1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe,1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe"

Network

N/A

Files

memory/2044-0-0x0000000000230000-0x0000000000231000-memory.dmp

memory/2044-6-0x0000000000400000-0x000000000059D000-memory.dmp

memory/2044-8-0x0000000000230000-0x0000000000231000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 22:50

Reported

2024-06-22 22:53

Platform

win10v2004-20240508-en

Max time kernel

140s

Max time network

131s

Command Line

"C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File opened for modification \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\2238225067\fj2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\2238225067\sx2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsinid.files\25.bmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\2238225067\lk2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\2238225067\fj2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\2238225067\sx2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\2238225067\2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\2238225067\mu2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\2238225067\mu2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\2238225067\2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\2238225067\lk2238225067.tmp C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.yws C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version\ = "7.0.1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe %1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\ = "ÓÑÒæÎÄÊé" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe,1" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.yws\ = "ywsfile" C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\043d6a2a34792372f0d9965b6d28823c_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=4200,i,6593821857742176458,13646536021844995125,262144 --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 9.73.50.20.in-addr.arpa udp

Files

memory/4236-0-0x00000000021F0000-0x00000000021F1000-memory.dmp

memory/4236-6-0x0000000000400000-0x000000000059D000-memory.dmp

memory/4236-7-0x0000000000400000-0x000000000059D000-memory.dmp

memory/4236-8-0x00000000021F0000-0x00000000021F1000-memory.dmp