Malware Analysis Report

2025-08-05 09:59

Sample ID 240403-xw6xpsaa7w
Target a456262a3687a2e321a9c3405a60746b_JaffaCakes118
SHA256 a20d6f1b2ff848088c1a588170ad1a1d726af6bb6a929c31ddf4cfc0e9e76a5f
Tags
agenttesla collection keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a20d6f1b2ff848088c1a588170ad1a1d726af6bb6a929c31ddf4cfc0e9e76a5f

Threat Level: Known bad

The file a456262a3687a2e321a9c3405a60746b_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

agenttesla collection keylogger persistence spyware stealer trojan

AgentTesla

AgentTesla payload

Drops file in Drivers directory

Accesses Microsoft Outlook profiles

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

outlook_office_path

Suspicious use of WriteProcessMemory

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-03 19:13

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 19:13

Reported

2024-04-03 19:15

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

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

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4500 set thread context of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4500 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 4500 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe"

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.66.18.2.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 218.122.19.2.in-addr.arpa udp
US 8.8.8.8:53 227.97.18.2.in-addr.arpa udp
US 8.8.8.8:53 210.108.222.173.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp

Files

memory/4500-0-0x0000000000FD0000-0x0000000001038000-memory.dmp

memory/4500-1-0x0000000075320000-0x0000000075AD0000-memory.dmp

memory/4500-2-0x0000000005DF0000-0x0000000006394000-memory.dmp

memory/4500-3-0x00000000058E0000-0x0000000005972000-memory.dmp

memory/4500-4-0x0000000005A80000-0x0000000005A90000-memory.dmp

memory/4500-5-0x0000000005B90000-0x0000000005B9A000-memory.dmp

memory/4500-6-0x0000000007250000-0x000000000725A000-memory.dmp

memory/4500-7-0x0000000075320000-0x0000000075AD0000-memory.dmp

memory/4500-8-0x0000000005A80000-0x0000000005A90000-memory.dmp

memory/4500-9-0x0000000007260000-0x00000000072FC000-memory.dmp

memory/4500-10-0x0000000007360000-0x00000000073C0000-memory.dmp

memory/1424-11-0x0000000000400000-0x000000000043C000-memory.dmp

memory/4500-13-0x0000000075320000-0x0000000075AD0000-memory.dmp

memory/1424-14-0x0000000005360000-0x0000000005370000-memory.dmp

memory/1424-15-0x0000000075320000-0x0000000075AD0000-memory.dmp

memory/1424-16-0x0000000005740000-0x0000000005758000-memory.dmp

memory/1424-17-0x0000000006230000-0x0000000006296000-memory.dmp

memory/1424-19-0x0000000005360000-0x0000000005370000-memory.dmp

memory/1424-20-0x0000000075320000-0x0000000075AD0000-memory.dmp

memory/1424-22-0x00000000066B0000-0x0000000006700000-memory.dmp

memory/1424-23-0x0000000005360000-0x0000000005370000-memory.dmp

memory/1424-24-0x0000000005360000-0x0000000005370000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 19:13

Reported

2024-04-03 19:15

Platform

win7-20240221-en

Max time kernel

149s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

AgentTesla payload

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

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2528 set thread context of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2528 wrote to memory of 2816 N/A C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a456262a3687a2e321a9c3405a60746b_JaffaCakes118.exe"

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

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

Network

N/A

Files

memory/2528-0-0x0000000000240000-0x00000000002A8000-memory.dmp

memory/2528-1-0x0000000074600000-0x0000000074CEE000-memory.dmp

memory/2528-2-0x0000000000550000-0x0000000000590000-memory.dmp

memory/2528-3-0x0000000000540000-0x000000000054A000-memory.dmp

memory/2528-4-0x0000000074600000-0x0000000074CEE000-memory.dmp

memory/2528-5-0x0000000000550000-0x0000000000590000-memory.dmp

memory/2528-6-0x0000000004480000-0x00000000044E0000-memory.dmp

memory/2816-7-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-8-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-9-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-10-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-17-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-15-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-13-0x0000000000400000-0x000000000043C000-memory.dmp

memory/2816-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2816-18-0x0000000074600000-0x0000000074CEE000-memory.dmp

memory/2528-20-0x0000000074600000-0x0000000074CEE000-memory.dmp

memory/2816-19-0x0000000004BD0000-0x0000000004C10000-memory.dmp

memory/2816-22-0x0000000074600000-0x0000000074CEE000-memory.dmp

memory/2816-24-0x0000000004BD0000-0x0000000004C10000-memory.dmp

memory/2816-25-0x0000000004BD0000-0x0000000004C10000-memory.dmp