Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
06-03-2024 05:59
Behavioral task
behavioral1
Sample
b6ae15ab999b2dd5398dd62de1a92179.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b6ae15ab999b2dd5398dd62de1a92179.exe
Resource
win10v2004-20240226-en
General
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Target
b6ae15ab999b2dd5398dd62de1a92179.exe
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Size
33KB
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MD5
b6ae15ab999b2dd5398dd62de1a92179
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SHA1
27de86591832a8688660372bf9ae930560b0ea4c
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SHA256
579ae9a57dd87fe89a5ac05f9a2aa235ba0ca7886d63a485d68adc17a2bf2357
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SHA512
8b4d8b3264f71d70564b842f5c75967643149b12907f9a2e3a1f8e631d0d92f47059bfd74157545bdb6f4ad0c2ce96cb5d0c70610f61dcf86f5a1b914a483811
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SSDEEP
768:AHdF/wBIOnkujXAIUGpKzERLziyS1WTJy7s:A9h8tjXfQzs3uWSs
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid Process 664 netsh.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b6ae15ab999b2dd5398dd62de1a92179.exeServer.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation b6ae15ab999b2dd5398dd62de1a92179.exe Key value queried \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation Server.exe -
Drops startup file 2 IoCs
Processes:
Host Process for Windows Tasks.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ee7f17bab7306b657d81470e90c3afc.exe Host Process for Windows Tasks.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ee7f17bab7306b657d81470e90c3afc.exe Host Process for Windows Tasks.exe -
Executes dropped EXE 2 IoCs
Processes:
Server.exeHost Process for Windows Tasks.exepid Process 5088 Server.exe 4400 Host Process for Windows Tasks.exe -
Obfuscated with Agile.Net obfuscator 2 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
Processes:
resource yara_rule behavioral2/memory/2992-0-0x0000000000060000-0x000000000006E000-memory.dmp agile_net behavioral2/memory/2992-2-0x0000000004AC0000-0x0000000004AD0000-memory.dmp agile_net -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Host Process for Windows Tasks.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\6ee7f17bab7306b657d81470e90c3afc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Host Process for Windows Tasks.exe\" .." Host Process for Windows Tasks.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6ee7f17bab7306b657d81470e90c3afc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Host Process for Windows Tasks.exe\" .." Host Process for Windows Tasks.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 50 IoCs
Processes:
Host Process for Windows Tasks.exepid Process 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe 4400 Host Process for Windows Tasks.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Host Process for Windows Tasks.exedescription pid Process Token: SeDebugPrivilege 4400 Host Process for Windows Tasks.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
b6ae15ab999b2dd5398dd62de1a92179.exeServer.exeHost Process for Windows Tasks.exedescription pid Process procid_target PID 2992 wrote to memory of 5088 2992 b6ae15ab999b2dd5398dd62de1a92179.exe 91 PID 2992 wrote to memory of 5088 2992 b6ae15ab999b2dd5398dd62de1a92179.exe 91 PID 2992 wrote to memory of 5088 2992 b6ae15ab999b2dd5398dd62de1a92179.exe 91 PID 5088 wrote to memory of 4400 5088 Server.exe 92 PID 5088 wrote to memory of 4400 5088 Server.exe 92 PID 5088 wrote to memory of 4400 5088 Server.exe 92 PID 4400 wrote to memory of 664 4400 Host Process for Windows Tasks.exe 93 PID 4400 wrote to memory of 664 4400 Host Process for Windows Tasks.exe 93 PID 4400 wrote to memory of 664 4400 Host Process for Windows Tasks.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\b6ae15ab999b2dd5398dd62de1a92179.exe"C:\Users\Admin\AppData\Local\Temp\b6ae15ab999b2dd5398dd62de1a92179.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2992 -
C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp\Server.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5088 -
C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe"C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4400 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Host Process for Windows Tasks.exe" "Host Process for Windows Tasks.exe" ENABLE4⤵
- Modifies Windows Firewall
PID:664
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
28KB
MD538bc37837b8ac3034f5d1ed53c49ebc6
SHA1df2e9e9c5105406934e9a0ae916cd7f14c1b6081
SHA256a03fd81c4580e67525fcfad3642eb7e511069a91d70ba10ccd667561f663324c
SHA512b093211c777ea22f0a829b0abe75429e1fa08030bf99d3ccbc454648b3bf9d8d73b7a2eb04b5c7b562c6bfc123f888fa49eddd0065e61e97076ea7232e57d61f