Malware Analysis Report

2025-08-05 23:04

Sample ID 240412-aql9sada4t
Target eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118
SHA256 633a2f9d97be6e25dc8b58c3fa3fb3c13ec8ec4b6ca75dbddd555b74053f9e00
Tags
themida evasion persistence
score
8/10

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
8/10

SHA256

633a2f9d97be6e25dc8b58c3fa3fb3c13ec8ec4b6ca75dbddd555b74053f9e00

Threat Level: Likely malicious

The file eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

themida evasion persistence

Stops running service(s)

Uses Session Manager for persistence

Modifies Windows Firewall

Themida packer

Adds Run key to start application

Drops file in System32 directory

Drops file in Windows directory

Launches sc.exe

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-12 00:25

Signatures

Themida packer

themida
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

2024-04-12 00:25

Reported

2024-04-12 00:27

Platform

win7-20240221-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"

Signatures

Modifies Windows Firewall

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

Stops running service(s)

evasion

Uses Session Manager for persistence

persistence
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SESSION MANAGER\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 C:\Windows\SysWOW64\reg.exe N/A
Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet002\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 C:\Windows\SysWOW64\reg.exe N/A
Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SESSION MANAGER\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 C:\Windows\SysWOW64\reg.exe N/A

Themida packer

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Winexec32 = "C:\\windows\\system\\win.exe" C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\reg_winupdate001.txt C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\windows\system\win.exe C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe N/A

Launches sc.exe

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

Creates scheduled task(s)

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2368 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2368 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2368 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2368 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\sc.exe
PID 2368 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\sc.exe
PID 2368 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\sc.exe
PID 2368 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\sc.exe
PID 2368 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2772 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\reg.exe
PID 2368 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\netsh.exe
PID 2368 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\netsh.exe
PID 2368 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\netsh.exe
PID 2368 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system

C:\Windows\SysWOW64\sc.exe

sc delete GbpSv

C:\Windows\SysWOW64\reg.exe

reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f

C:\Windows\SysWOW64\reg.exe

reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f

C:\Windows\SysWOW64\reg.exe

reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram C:\windows\system\win.exe RPCCC

Network

Country Destination Domain Proto
US 8.8.8.8:53 ecovision.my-webs.org udp
US 199.59.243.225:80 ecovision.my-webs.org tcp

Files

memory/2368-1-0x0000000000310000-0x00000000003F0000-memory.dmp

memory/2368-0-0x00000000002E0000-0x00000000002E1000-memory.dmp

memory/2368-5-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-6-0x0000000006DD0000-0x0000000006DD1000-memory.dmp

memory/2368-7-0x0000000006DB0000-0x0000000006DB1000-memory.dmp

memory/2368-8-0x0000000006D70000-0x0000000006D72000-memory.dmp

memory/2368-9-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-10-0x0000000006D60000-0x0000000006D62000-memory.dmp

memory/2368-12-0x0000000006DC0000-0x0000000006DC1000-memory.dmp

memory/2368-14-0x0000000006E60000-0x0000000006E61000-memory.dmp

memory/2368-16-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-17-0x0000000006EA0000-0x0000000006EA1000-memory.dmp

memory/2368-18-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-19-0x0000000006F40000-0x0000000006F41000-memory.dmp

memory/2368-20-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-21-0x0000000006DF0000-0x0000000006DF1000-memory.dmp

memory/2368-22-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-23-0x0000000006F50000-0x0000000006F51000-memory.dmp

memory/2368-25-0x0000000006E70000-0x0000000006E72000-memory.dmp

memory/2368-27-0x0000000006EF0000-0x0000000006EF1000-memory.dmp

memory/2368-29-0x0000000006DE0000-0x0000000006DE1000-memory.dmp

memory/2368-31-0x0000000006EB0000-0x0000000006EB1000-memory.dmp

memory/2368-32-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-33-0x0000000006F00000-0x0000000006F01000-memory.dmp

memory/2368-34-0x0000000000400000-0x0000000001C72000-memory.dmp

memory/2368-35-0x0000000006F30000-0x0000000006F31000-memory.dmp

memory/2368-36-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

memory/2368-37-0x0000000006E40000-0x0000000006E41000-memory.dmp

memory/2368-38-0x00000000071B0000-0x00000000071B2000-memory.dmp

memory/2368-39-0x0000000006F20000-0x0000000006F21000-memory.dmp

memory/2368-40-0x0000000006EE0000-0x0000000006EE1000-memory.dmp

memory/2368-41-0x0000000006DA0000-0x0000000006DA1000-memory.dmp

memory/2368-42-0x0000000006D90000-0x0000000006D91000-memory.dmp

memory/2368-43-0x0000000006D80000-0x0000000006D81000-memory.dmp

memory/2368-44-0x0000000006E80000-0x0000000006E81000-memory.dmp

memory/2368-45-0x0000000006E20000-0x0000000006E21000-memory.dmp

memory/2368-46-0x0000000006EC0000-0x0000000006EC1000-memory.dmp

memory/2368-47-0x0000000006ED0000-0x0000000006ED1000-memory.dmp

memory/2368-48-0x0000000006E30000-0x0000000006E31000-memory.dmp

memory/2368-49-0x0000000006E00000-0x0000000006E01000-memory.dmp

memory/2368-50-0x00000000070E0000-0x00000000070E2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-12 00:25

Reported

2024-04-12 00:27

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/3064-1-0x00000000038E0000-0x00000000039C0000-memory.dmp

memory/3064-0-0x00000000022A0000-0x00000000022A1000-memory.dmp