Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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 4 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msvwn32.exe" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983} 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msvwn32.exe" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1216 svchost.exe -
Modifies system executable filetype association 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" svchost.exe -
Adds Run key to start application 2 TTPs 4 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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" svchost.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\vcl32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File created C:\Windows\SysWOW64\msvwn32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\msvwn32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File created C:\Windows\SysWOW64\concp32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
resource yara_rule behavioral1/memory/1716-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/files/0x0008000000016d71-5.dat upx behavioral1/files/0x0009000000016ce8-15.dat upx behavioral1/memory/1716-14-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral1/memory/1216-16-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\svchost.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe File opened for modification C:\Windows\svchost.exe 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Modifies registry class 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983} svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f svchost.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983} 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\ax = ce0b6cb7e491c4728bd2053922a6de17 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{17FAD008-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 svchost.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1716 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1716 wrote to memory of 1216 1716 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe 30 PID 1716 wrote to memory of 1216 1716 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe 30 PID 1716 wrote to memory of 1216 1716 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe 30 PID 1716 wrote to memory of 1216 1716 79f79e7fdd867e701fbae0f4cebc9dd49537e3d40cdc227446227e34dcfe5115N.exe 30
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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\svchost.exeC:\Windows\svchost.exe2⤵
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Modifies system executable filetype association
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:1216
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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
784KB
MD51fd0a34a538bc4fbcd1ea0fbf51710b7
SHA18941495f781238047c48b4b847e46b741a10482d
SHA25654dcf5cbce8268a37dcac479c30f388431c52cd9b64605e965f9a91f1df9a0dd
SHA512e80308f62e5c0de6521ec08eab0da8ed8bd298b04d50c4be4d7913cbe090f4ed99144c2a8b0baec864470e7ad4ac9ad2185a4408d3e02fd1cc4eb83cae977997
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Filesize
785KB
MD5507544b52e25c5ae3d519345553fb182
SHA1f506271e582016b9ecdcce03ae05a7fe87cccff3
SHA256792795a522f193065f383f939ddfed5a91f653c5766dacd1de02b358e3835438
SHA512a6551b0881ec762d4ebec7cf296f0cfe502ac08ab0e1490f6fcbdafd558d6fdae8434b0e95ce6c0131306a81ed3f52e68b5e0aed9a8c9e370a81c083de7aaebc