Malware Analysis Report

2025-01-22 12:54

Sample ID 240521-1y2bsabh33
Target 64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118
SHA256 a7a3409b825eeeb0f6b95011d43cd48b64bc3d7b848f207b4de539a754421f76
Tags
vmprotect
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

a7a3409b825eeeb0f6b95011d43cd48b64bc3d7b848f207b4de539a754421f76

Threat Level: Shows suspicious behavior

The file 64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

Deletes itself

Loads dropped DLL

VMProtect packed file

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-21 22:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-21 22:04

Reported

2024-05-21 22:06

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\bnsspx.dll C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\zmdll.lst C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

Suspicious behavior: LoadsDriver

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A
N/A N/A N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd /c c:\uisad.bat

Network

N/A

Files

\Windows\SysWOW64\bnsspx.dll

MD5 b1c65f5eee9c0ac609e79a3b7fb92bf1
SHA1 a87a15f7ef332e87e34aeef19c62499957c2dceb
SHA256 1d9d140865cddc93e7e021d6f185812eff1f1f19f76e6a0d90030511ff8d4037
SHA512 9fb52f6b5dfc3eeff9b74d818ade74b7a4f2bb8694e89ead48c42e1994474a7b185379712424711c36a53c5fa9482a4a568fc23086f9279c5a872ac09c802d1c

C:\uisad.bat

MD5 8a7102507aa507ec5ff7dc9be9be9a71
SHA1 a8d2c35409d46e7f2decdf7749880535ebb8b0f0
SHA256 fdc7b83f1d316cb035a920cf23ff8e86b5222b9255a3c5a19b03162e328cdba0
SHA512 8b11e4851cd92bd844906e4f804e951377f6d0536b914afa62cf2b9f3a5e4093cfa2be08d8806da2c468cc04fc9c54bb6596666c8aa1374056d8f36fe2a1ae75

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 22:04

Reported

2024-05-21 22:06

Platform

win10v2004-20240508-en

Max time kernel

140s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\bnsspx.dll C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\zmdll.lst C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

Suspicious behavior: LoadsDriver

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A
N/A N/A N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\64edc8e59d503ef568b72e2bea79a5bc_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c c:\uisad.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
NL 23.62.61.168:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 168.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

C:\Windows\SysWOW64\bnsspx.dll

MD5 b1c65f5eee9c0ac609e79a3b7fb92bf1
SHA1 a87a15f7ef332e87e34aeef19c62499957c2dceb
SHA256 1d9d140865cddc93e7e021d6f185812eff1f1f19f76e6a0d90030511ff8d4037
SHA512 9fb52f6b5dfc3eeff9b74d818ade74b7a4f2bb8694e89ead48c42e1994474a7b185379712424711c36a53c5fa9482a4a568fc23086f9279c5a872ac09c802d1c

\??\c:\uisad.bat

MD5 8a7102507aa507ec5ff7dc9be9be9a71
SHA1 a8d2c35409d46e7f2decdf7749880535ebb8b0f0
SHA256 fdc7b83f1d316cb035a920cf23ff8e86b5222b9255a3c5a19b03162e328cdba0
SHA512 8b11e4851cd92bd844906e4f804e951377f6d0536b914afa62cf2b9f3a5e4093cfa2be08d8806da2c468cc04fc9c54bb6596666c8aa1374056d8f36fe2a1ae75