Malware Analysis Report

2025-08-06 01:36

Sample ID 241016-3htccasfqq
Target 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118
SHA256 7a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355
Tags
bootkit defense_evasion discovery persistence
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

7a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355

Threat Level: Shows suspicious behavior

The file 4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit defense_evasion discovery persistence

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Indicator Removal: File Deletion

Writes to the Master Boot Record (MBR)

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-16 23:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-16 23:31

Reported

2024-10-16 23:33

Platform

win7-20240903-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"

Signatures

Executes dropped EXE

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

Indicator Removal: File Deletion

defense_evasion

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe N/A
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\_uantspro_.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\_uantspro_.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"

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

C:\Users\Admin\AppData\Local\Temp\\_uantspro_.exe 408

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\_UANTS~1.EXE > nul

Network

N/A

Files

memory/2628-0-0x0000000010000000-0x0000000010045000-memory.dmp

\Users\Admin\AppData\Local\Temp\_uantspro_.exe

MD5 4f9d7ac2a7d970352a8fd6d302b1fd6e
SHA1 fed01d03644f685f3a9913cb233eb5c37c3a2299
SHA256 7a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355
SHA512 ae26e69089b03ba69c7aa3a48b4a252d2534143ffb591317360a0c1534ce33bf9cb0fba5257483a752517e57a5be6033ab66a62f8fa8d0e1392a5d8f0447abf9

memory/2652-12-0x0000000010000000-0x0000000010045000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-16 23:31

Reported

2024-10-16 23:33

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\_uantspro_.exe N/A

Executes dropped EXE

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

Indicator Removal: File Deletion

defense_evasion

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe N/A
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\_uantspro_.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\_uantspro_.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\4f9d7ac2a7d970352a8fd6d302b1fd6e_JaffaCakes118.exe"

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

C:\Users\Admin\AppData\Local\Temp\\_uantspro_.exe 712

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\_UANTS~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 27.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1072-0-0x0000000010000000-0x0000000010045000-memory.dmp

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

MD5 4f9d7ac2a7d970352a8fd6d302b1fd6e
SHA1 fed01d03644f685f3a9913cb233eb5c37c3a2299
SHA256 7a0ef9a0eea4dce4acae6b442f51cb7de4f2792504b7c0050fe246c4fe8ef355
SHA512 ae26e69089b03ba69c7aa3a48b4a252d2534143ffb591317360a0c1534ce33bf9cb0fba5257483a752517e57a5be6033ab66a62f8fa8d0e1392a5d8f0447abf9