Malware Analysis Report

2025-03-15 00:54

Sample ID 240626-2qgsvayclb
Target 13c199c208b022940e06b654f968c5d1_JaffaCakes118
SHA256 9a78b873c2aa291b1834b8ddb741b78ac2f564174dd58d223f9fb748f6d10532
Tags
defense_evasion 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

9a78b873c2aa291b1834b8ddb741b78ac2f564174dd58d223f9fb748f6d10532

Threat Level: Shows suspicious behavior

The file 13c199c208b022940e06b654f968c5d1_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion persistence

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

Impair Defenses: Safe Mode Boot

Modifies WinLogon

Drops file in System32 directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-26 22:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 22:47

Reported

2024-06-26 22:49

Platform

win7-20231129-en

Max time kernel

140s

Max time network

120s

Command Line

C:\Windows\Explorer.EXE

Signatures

ACProtect 1.3x - 1.4x DLL software

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

Impair Defenses: Safe Mode Boot

defense_evasion
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\emul65.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\emul65.sys\ = "Driver" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\emul37.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\emul37.sys\ = "Driver" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\Impersonate = "1" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\Asynchronous = "1" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\MaxWait = "1" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65 C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\secureUID = "[36547148743947036012]" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\DllName = "emul65.dll" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\emul65\Startup = "MezZZccbbB" C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\emul65.dll C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\qz.dll C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\emul37.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\qy.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\zxcsedr.dll C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\emul37.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\qz.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\emul65.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\emul65.sys C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\x8.xxd C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\x8.xxd C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe"

Network

N/A

Files

\Windows\SysWOW64\emul65.dll

MD5 ab8730f9baeb55d4e12abd5275106270
SHA1 2a796b58a0e4001c4c958e6d5a38273877102422
SHA256 d3a4ba8d0837e6bf6a1ba4648e1f9e2f4980ac763e6a2537514e55de906e1b41
SHA512 592f89c0153a1e00027772d373c835acc7d3490b180a9a2025618635bfef6041c088780e0e11d567856868944157b095e142aab1968062ae65a6dc09c4b649cc

memory/1660-12-0x0000000010000000-0x000000001004D000-memory.dmp

memory/1260-15-0x00000000025B0000-0x00000000025B1000-memory.dmp

memory/1660-18-0x0000000000400000-0x0000000000432000-memory.dmp

memory/1660-19-0x0000000010000000-0x000000001004D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 22:47

Reported

2024-06-26 22:49

Platform

win10v2004-20240611-en

Max time kernel

135s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\13c199c208b022940e06b654f968c5d1_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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

N/A