Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/11/2024, 11:26
Behavioral task
behavioral1
Sample
79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe
Resource
win10v2004-20241007-en
General
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Target
79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe
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Size
781KB
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MD5
df0de1673372eb6eec708163c3411940
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SHA1
cdc5c2a93b82a5c7571929f09f41a30a28bd6cb4
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SHA256
79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115
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SHA512
dbc10cc6e020cf1832c3b342f089ab68aac021d527a7f12ae27296fc30eb21f514fac341c3860f75e9a148ac1243734f6be35e490e57e1900a5d5754003190d5
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SSDEEP
12288:7tKe6Zv23YLVFhBsC8iFHs+hsuQXIQVRpVnl3Bg5oiNBsVVQoOY41lR:v6Zv2ivhBVnFvh5Q44+ii0VaoOhPR
Malware Config
Signatures
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Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983} 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msqfn32.exe" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\msqfn32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\msqfn32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File created C:\Windows\SysWOW64\concp32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File created C:\Windows\SysWOW64\vcl32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
resource yara_rule behavioral2/memory/4848-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral2/files/0x0007000000023ca0-5.dat upx behavioral2/memory/4848-7-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 388 4848 WerFault.exe 82 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983} 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1B73E6A7-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 914c55ea7bcb7de11d853ba0ea6fda6e 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4848 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe"C:\Users\Admin\AppData\Local\Temp\79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4848 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 6282⤵
- Program crash
PID:388
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4848 -ip 48481⤵PID:5092
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Replay Monitor
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Downloads
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Filesize
789KB
MD58b7b57b28e3ff0290b645fc8c8de8445
SHA1721ad1ba5b5f5b0577167110305a5956ff67cda1
SHA256bf2451144d7339c651ebd3ec786c67da4035f8e3aed286be7d938f01f81e4f85
SHA51278ab1363432625d9d169b2926691a9f380e74ec064b98331fb49c926b70c71002c6a7cc32d6e8eb05946c5155d720a2b24e552a65a8683a62da12bfc7d657804