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Analysis
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max time kernel
92s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
25/09/2024, 07:34
Static task
static1
Behavioral task
behavioral1
Sample
98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe
Resource
win10v2004-20240802-en
General
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Target
98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe
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Size
522KB
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MD5
38e068d2be79fc66cfeda97b900b9330
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SHA1
26c231cc362fd511f7c73a0a0017443a55ec0e60
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SHA256
98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903f
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SHA512
c79ac30b20bad6d773314f43b375d0b50826b8cd044bd17cf74d6cbb1d1b566beb94093539ce268cb071f31bd68352ea814358a1766b2d2dc85b7a5a17a617dd
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SSDEEP
12288:ntKe6Zv23YeVONkJDFPQeGySItg8lnZVUxP3tk1u:76Zv2l4kPQeGyp6tko
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\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983} 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msfos32.exe" 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.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\" %*" 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.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" 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\msfos32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe File created C:\Windows\SysWOW64\concp32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe File opened for modification C:\Windows\SysWOW64\concp32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe File created C:\Windows\SysWOW64\vcl32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe File created C:\Windows\SysWOW64\msfos32.exe 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3412 3056 WerFault.exe 81 -
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 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983} 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{59AB28B4-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 2f0af4270a1296d7d581bea899669090 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3056 98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.exe"C:\Users\Admin\AppData\Local\Temp\98bb57ba1c1a420726eba706d8f91c4482042a14433e9d29ef6a2c42b5c3903fN.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:3056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 7122⤵
- Program crash
PID:3412
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3056 -ip 30561⤵PID:3888
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
528KB
MD5d1c0473a82c38e1634be34edf3abd17d
SHA14fa912c816ee73e21f9b452f7d583bd49fae44e6
SHA256536f2b958874c551187559e60f06571bfe5285629233d5e05f9413dab96ecb71
SHA512a4e1169c49ae17fb4833d3abedf88a1540cdc4f87955fe61189f89b0f3fd176729aae873919a063bacc6151691f80909f70d6f46c8942f9ee8b81cba0cd0a743