Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
12/11/2024, 14:00
Static task
static1
Behavioral task
behavioral1
Sample
b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe
Resource
win10v2004-20241007-en
General
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Target
b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe
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Size
777KB
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MD5
919fd5cd3f9378b6b0fbeda894563842
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SHA1
f221d9eb4ea47bca8c7042e3800c1587cf7d7e8f
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SHA256
b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725
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SHA512
ac3b18e930a826a1e922450da498fe883c4e20a825e7eecf6d5de4b2f3c51bb6f2c5d047b7bc8a82def7205488ce592d1a6d77c554848f8bdd501264ae6a81c4
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SSDEEP
24576:d6Zv2VIPp9IyTFC00OIswnS+6u4xtyk9VPJ6Bq9ZA:dE26PoyTM00OhaS+U9h63
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 Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983} b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mswae32.exe" b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983} spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mswae32.exe" spoolsv.exe -
Executes dropped EXE 1 IoCs
pid Process 2732 spoolsv.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\" %*" b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" spoolsv.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" b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" spoolsv.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\mswae32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File opened for modification C:\Windows\SysWOW64\mswae32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File created C:\Windows\SysWOW64\concp32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File opened for modification C:\Windows\SysWOW64\concp32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File created C:\Windows\SysWOW64\vcl32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\spoolsv.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe File opened for modification C:\Windows\spoolsv.exe b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.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 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spoolsv.exe -
Modifies registry class 12 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226 spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4 spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983} b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\ax = ed83c948d524ebdf78c8f3620c00986d b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983} spoolsv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f spoolsv.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" spoolsv.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FB02097E-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165" spoolsv.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2092 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2092 wrote to memory of 2732 2092 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe 30 PID 2092 wrote to memory of 2732 2092 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe 30 PID 2092 wrote to memory of 2732 2092 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe 30 PID 2092 wrote to memory of 2732 2092 b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.exe"C:\Users\Admin\AppData\Local\Temp\b891aef085939935dab9c2073d7fd8855a72e283df16b282c88e4eec034a5725.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:2092 -
C:\Windows\spoolsv.exeC:\Windows\spoolsv.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:2732
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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
778KB
MD50971ee2eafb3fd3ac6640fb92e874087
SHA1e4e94c662a32246315a016686d805a8fd12f4b28
SHA256ff9005af2266d3b2cbd009ee7ded001cbb395624d7d160ffdb01209f80f1f0b1
SHA512752f8844205a6974d73178dec3496b66c38abf2867541e75ace38f4325755e638cb8085f89e4a97dcf10e43acc826fd11276c44173e6495bf6beb55df042f98e
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Filesize
780KB
MD55800b62cdb2c9f6d24b4fd9418034057
SHA13141e6883b0f01e9f4d9c229cf9306f3575d5fd1
SHA25647b1c1846049609634d388ba5ba895232148737564c8bd4a530ba67cea5ed13b
SHA512f622518d7fa24bd6f9e767df97ec216ef2c5461e2e4a698e8588dcf5f3843d375948120df6d4c68d5b6ff91ad7acfcf07081f576c32bbbc1b1937ccb1ad0afb6