Malware Analysis Report

2025-01-18 21:39

Sample ID 240415-sh2nlsbf3t
Target f1594abdc390ac24693b17e22c1ad433_JaffaCakes118
SHA256 86722dd18841f9ddf3537c42af0d69c4a990f4db6f643374595e98d678f4f7c3
Tags
aspackv2 adware stealer
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

86722dd18841f9ddf3537c42af0d69c4a990f4db6f643374595e98d678f4f7c3

Threat Level: Shows suspicious behavior

The file f1594abdc390ac24693b17e22c1ad433_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 adware stealer

ASPack v2.12-2.42

Installs/modifies Browser Helper Object

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-15 15:08

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

2024-04-15 15:08

Reported

2024-04-15 15:10

Platform

win7-20240220-en

Max time kernel

117s

Max time network

118s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\ = "Äîñòóï ê ïëàòíîìó êîíòåíòó FieryAds v2.0.2" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2364 wrote to memory of 1964 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\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

Network

N/A

Files

memory/1964-0-0x0000000002300000-0x0000000002445000-memory.dmp

memory/1964-1-0x0000000003590000-0x0000000003592000-memory.dmp

memory/1964-2-0x0000000000370000-0x00000000003CA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 15:08

Reported

2024-04-15 15:10

Platform

win10v2004-20240412-en

Max time kernel

93s

Max time network

122s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\ = "Äîñòóï ê ïëàòíîìó êîíòåíòó FieryAds v2.0.2" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{6D125299-C2A9-4DBC-BEC3-6F7124E39A41}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5072 wrote to memory of 944 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 5072 wrote to memory of 944 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 5072 wrote to memory of 944 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\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f1594abdc390ac24693b17e22c1ad433_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
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 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 24.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

memory/944-0-0x0000000000400000-0x0000000000545000-memory.dmp

memory/944-2-0x00000000024E0000-0x000000000253A000-memory.dmp

memory/944-1-0x0000000000400000-0x0000000000545000-memory.dmp

memory/944-3-0x00000000024C0000-0x00000000024C1000-memory.dmp

memory/944-4-0x0000000003550000-0x0000000003551000-memory.dmp

memory/944-5-0x0000000003540000-0x0000000003542000-memory.dmp

memory/944-6-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

memory/944-7-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

memory/944-8-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

memory/944-9-0x0000000003540000-0x0000000003541000-memory.dmp

memory/944-10-0x00000000028C0000-0x00000000028C1000-memory.dmp