Malware Analysis Report

2025-01-22 12:45

Sample ID 240622-3jm7qateqm
Target 0464e88146cf780367e6a7a78229aeaa_JaffaCakes118
SHA256 57ff95b705fb01497d867c695b4c749e19fe2d11f20310b17ac3723d17856b36
Tags
aspackv2 bootkit 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

57ff95b705fb01497d867c695b4c749e19fe2d11f20310b17ac3723d17856b36

Threat Level: Shows suspicious behavior

The file 0464e88146cf780367e6a7a78229aeaa_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 bootkit persistence

ASPack v2.12-2.42

Writes to the Master Boot Record (MBR)

Unsigned PE

Program crash

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-22 23:32

Signatures

ASPack v2.12-2.42

aspackv2
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

2024-06-22 23:32

Reported

2024-06-22 23:35

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{D103EBF9-6DD5-4715-863A-00AA27C7935A}\ = "loader" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\ = "loader 1.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\loader.DLL\AppID = "{D103EBF9-6DD5-4715-863A-00AA27C7935A}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C85E2990-D4B6-44F5-A323-ED943493F8DF}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2360 wrote to memory of 1712 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

Network

N/A

Files

memory/1712-0-0x0000000010000000-0x0000000010041000-memory.dmp

memory/1712-1-0x0000000000290000-0x00000000002C0000-memory.dmp

memory/1712-2-0x0000000000280000-0x0000000000283000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 23:32

Reported

2024-06-22 23:35

Platform

win10v2004-20240226-en

Max time kernel

140s

Max time network

151s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\regsvr32.exe

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1596 wrote to memory of 1884 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1596 wrote to memory of 1884 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1596 wrote to memory of 1884 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0464e88146cf780367e6a7a78229aeaa_JaffaCakes118.dll

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1884 -ip 1884

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 700

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 31.73.42.20.in-addr.arpa udp

Files

memory/1884-0-0x0000000010000000-0x0000000010041000-memory.dmp

memory/1884-1-0x00000000021C0000-0x00000000021F0000-memory.dmp

memory/1884-2-0x00000000006D0000-0x00000000006D3000-memory.dmp

memory/1884-8-0x0000000002370000-0x0000000002371000-memory.dmp

memory/1884-10-0x0000000002390000-0x0000000002391000-memory.dmp

memory/1884-52-0x0000000002650000-0x0000000002651000-memory.dmp

memory/1884-51-0x0000000002630000-0x0000000002631000-memory.dmp

memory/1884-50-0x0000000002640000-0x0000000002641000-memory.dmp

memory/1884-49-0x0000000002620000-0x0000000002621000-memory.dmp

memory/1884-48-0x0000000002600000-0x0000000002601000-memory.dmp

memory/1884-47-0x0000000002610000-0x0000000002611000-memory.dmp

memory/1884-46-0x00000000025E0000-0x00000000025E1000-memory.dmp

memory/1884-45-0x00000000025F0000-0x00000000025F1000-memory.dmp

memory/1884-44-0x00000000025C0000-0x00000000025C1000-memory.dmp

memory/1884-43-0x00000000025D0000-0x00000000025D1000-memory.dmp

memory/1884-42-0x00000000025A0000-0x00000000025A1000-memory.dmp

memory/1884-41-0x00000000025B0000-0x00000000025B1000-memory.dmp

memory/1884-40-0x0000000002580000-0x0000000002581000-memory.dmp

memory/1884-39-0x0000000002590000-0x0000000002591000-memory.dmp

memory/1884-38-0x0000000002560000-0x0000000002561000-memory.dmp

memory/1884-37-0x0000000002570000-0x0000000002571000-memory.dmp

memory/1884-36-0x0000000002540000-0x0000000002541000-memory.dmp

memory/1884-35-0x0000000002550000-0x0000000002551000-memory.dmp

memory/1884-34-0x0000000002520000-0x0000000002521000-memory.dmp

memory/1884-33-0x0000000002530000-0x0000000002531000-memory.dmp

memory/1884-32-0x0000000002500000-0x0000000002501000-memory.dmp

memory/1884-31-0x0000000002510000-0x0000000002511000-memory.dmp

memory/1884-30-0x00000000024E0000-0x00000000024E1000-memory.dmp

memory/1884-29-0x00000000024F0000-0x00000000024F1000-memory.dmp

memory/1884-28-0x00000000024B0000-0x00000000024B1000-memory.dmp

memory/1884-27-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/1884-26-0x0000000002490000-0x0000000002491000-memory.dmp

memory/1884-25-0x00000000024A0000-0x00000000024A1000-memory.dmp

memory/1884-24-0x0000000002470000-0x0000000002471000-memory.dmp

memory/1884-23-0x0000000002480000-0x0000000002481000-memory.dmp

memory/1884-22-0x0000000002450000-0x0000000002451000-memory.dmp

memory/1884-21-0x0000000002460000-0x0000000002461000-memory.dmp

memory/1884-20-0x0000000002430000-0x0000000002431000-memory.dmp

memory/1884-19-0x0000000002440000-0x0000000002441000-memory.dmp

memory/1884-18-0x0000000002410000-0x0000000002411000-memory.dmp

memory/1884-17-0x0000000002420000-0x0000000002421000-memory.dmp

memory/1884-16-0x00000000023F0000-0x00000000023F1000-memory.dmp

memory/1884-15-0x0000000002400000-0x0000000002401000-memory.dmp

memory/1884-14-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/1884-13-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/1884-12-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/1884-11-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/1884-9-0x00000000023A0000-0x00000000023A1000-memory.dmp

memory/1884-7-0x0000000002380000-0x0000000002381000-memory.dmp

memory/1884-6-0x00000000006A0000-0x00000000006A1000-memory.dmp

memory/1884-5-0x0000000000690000-0x0000000000691000-memory.dmp

memory/1884-4-0x00000000006E0000-0x00000000006E1000-memory.dmp

memory/1884-3-0x00000000006C0000-0x00000000006C1000-memory.dmp

memory/1884-53-0x0000000010000000-0x0000000010041000-memory.dmp

memory/1884-54-0x0000000002660000-0x0000000002661000-memory.dmp

memory/1884-57-0x00000000021C0000-0x00000000021F0000-memory.dmp

memory/1884-56-0x0000000010000000-0x0000000010041000-memory.dmp