Malware Analysis Report

2025-08-11 07:37

Sample ID 241015-2jnb2svenq
Target f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN
SHA256 f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ce
Tags
bootkit discovery execution persistence
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

f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ce

Threat Level: Shows suspicious behavior

The file f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit discovery execution persistence

Writes to the Master Boot Record (MBR)

Command and Scripting Interpreter: JavaScript

System Location Discovery: System Language Discovery

Unsigned PE

Modifies Internet Explorer settings

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 22:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-15 22:36

Reported

2024-10-15 22:38

Platform

win7-20240903-en

Max time kernel

120s

Max time network

111s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe N/A

Command and Scripting Interpreter: JavaScript

execution

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\wscript.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe

"C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe"

C:\Windows\SysWOW64\wscript.exe

wscript.exe /B "\bcbachh.jse" FirstSetup

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.ttver.com udp
US 172.65.190.172:80 www.ttver.com tcp
US 8.8.8.8:53 file-sg.gname.net udp
US 172.64.154.251:443 file-sg.gname.net tcp
US 172.64.154.251:443 file-sg.gname.net tcp
US 8.8.8.8:53 c.pki.goog udp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

memory/2012-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat

MD5 e5b603d294a75ab442bc5fc2cf2e2d98
SHA1 b8485ad74eaf5bfd314a09c9535bf37e5298217e
SHA256 5257067e14f8d9a1648ef15118a1d817e828f1e8165b46d1f718a16564841b58
SHA512 ce2f13df4e25ccb7de43cca0994b29b2e5cb66bb66c7dce9dfdd2327940ce6b0b74e223a06059f965ddf5f28d5492f0795cbbe5116a140ad49107782af5f34a3

memory/2012-47-0x0000000000400000-0x0000000000483000-memory.dmp

memory/2012-48-0x00000000001B0000-0x00000000001B1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 22:36

Reported

2024-10-15 22:38

Platform

win10v2004-20241007-en

Max time kernel

120s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe N/A

Command and Scripting Interpreter: JavaScript

execution

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\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\wscript.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe

"C:\Users\Admin\AppData\Local\Temp\f7f8100fbc4db0c8bea6c7d3595285e428b0b4c4cc6f86e453bf1f78fcce74ceN.exe"

C:\Windows\SysWOW64\wscript.exe

wscript.exe /B "\bcbachh.jse" FirstSetup

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.ttver.com udp
US 172.65.190.172:80 www.ttver.com tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
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 8.8.8.8:53 172.190.65.172.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 file-sg.gname.net udp
US 104.18.33.5:443 file-sg.gname.net tcp
US 104.18.33.5:443 file-sg.gname.net tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 5.33.18.104.in-addr.arpa udp
US 8.8.8.8:53 3.178.250.142.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 104.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp

Files

memory/1576-0-0x0000000002320000-0x0000000002321000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\$$dmsf.bat

MD5 e5b603d294a75ab442bc5fc2cf2e2d98
SHA1 b8485ad74eaf5bfd314a09c9535bf37e5298217e
SHA256 5257067e14f8d9a1648ef15118a1d817e828f1e8165b46d1f718a16564841b58
SHA512 ce2f13df4e25ccb7de43cca0994b29b2e5cb66bb66c7dce9dfdd2327940ce6b0b74e223a06059f965ddf5f28d5492f0795cbbe5116a140ad49107782af5f34a3

memory/1576-17-0x0000000000400000-0x0000000000483000-memory.dmp

memory/1576-18-0x0000000002320000-0x0000000002321000-memory.dmp