Malware Analysis Report

2024-09-22 07:01

Sample ID 240617-n1hagatcrl
Target b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118
SHA256 e107f33acf7786523edf7c493735251ab5c16ac5565004d25353e910d4f6297c
Tags
asyncrat default persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
10/10

SHA256

e107f33acf7786523edf7c493735251ab5c16ac5565004d25353e910d4f6297c

Threat Level: Known bad

The file b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

asyncrat default persistence rat

Modifies WinLogon for persistence

AsyncRat

Drops startup file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Program crash

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-17 11:51

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 11:51

Reported

2024-06-17 11:54

Platform

win7-20240419-en

Max time kernel

139s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe"

Signatures

AsyncRat

rat asyncrat

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2012 set thread context of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Delays execution with timeout.exe

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2012 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 2012 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 2012 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 2012 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 2012 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe"

C:\Windows\SysWOW64\timeout.exe

timeout 4

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gfhghgfcf.duckdns.org udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
US 8.8.8.8:53 gfhghgfcf.duckdns.org udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp

Files

memory/2012-0-0x0000000073FDE000-0x0000000073FDF000-memory.dmp

memory/2012-1-0x000000000FFD0000-0x0000000010084000-memory.dmp

memory/2012-2-0x00000000004A0000-0x00000000004C6000-memory.dmp

memory/2012-4-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/2764-5-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-20-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-17-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-15-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2764-11-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-9-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-7-0x0000000000400000-0x0000000000412000-memory.dmp

memory/2764-543-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/2012-4352-0x0000000073FD0000-0x00000000746BE000-memory.dmp

memory/2764-4353-0x0000000073FD0000-0x00000000746BE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 11:51

Reported

2024-06-17 11:54

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe"

Signatures

AsyncRat

rat asyncrat

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe\"" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1900 set thread context of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Delays execution with timeout.exe

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1900 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 1900 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 1900 wrote to memory of 4904 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\SysWOW64\timeout.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 1900 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b8779fb73af8c6c528b6d4520247ca5c_JaffaCakes118.exe"

C:\Windows\SysWOW64\timeout.exe

timeout 4

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1900 -ip 1900

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1900 -s 1052

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.88:443 www.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
NL 23.62.61.88:443 www.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 200.131.50.23.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 gfhghgfcf.duckdns.org udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 gfhghgfcf.duckdns.org udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
CO 179.14.12.213:8050 gfhghgfcf.duckdns.org tcp
US 8.8.8.8:53 209.80.50.20.in-addr.arpa udp

Files

memory/1900-0-0x000000007508E000-0x000000007508F000-memory.dmp

memory/1900-1-0x0000000000A60000-0x0000000000B14000-memory.dmp

memory/1900-2-0x0000000005480000-0x000000000551C000-memory.dmp

memory/1900-3-0x0000000005410000-0x0000000005436000-memory.dmp

memory/1900-4-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1900-5-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1900-6-0x0000000006380000-0x0000000006924000-memory.dmp

memory/4244-8-0x0000000000400000-0x0000000000412000-memory.dmp

memory/4244-9-0x0000000075080000-0x0000000075830000-memory.dmp

memory/1900-10-0x0000000075080000-0x0000000075830000-memory.dmp

memory/4244-11-0x0000000075080000-0x0000000075830000-memory.dmp

memory/4244-12-0x0000000075080000-0x0000000075830000-memory.dmp