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Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11/11/2024, 21:22
Behavioral task
behavioral1
Sample
af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls
Resource
win10v2004-20241007-en
General
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Target
af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls
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Size
70KB
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MD5
59ea30384b2bce2b2c1e8eb98603e517
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SHA1
cbe9c01093e6aafc08be8ad1e901a7e299bd3aa8
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SHA256
af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952
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SHA512
beecaa0af23b566cf7c93296d5585dde298af721cdfd356436c60dcfe50e7c1f6c092b380461d0070c10e5ed4b5ea6e1eaf34388b390dd1b0c166878d108403b
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SSDEEP
1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8EgE:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMx
Malware Config
Extracted
https://strachanclark.com/images/3gc4qCpSFYbBMDEC/
https://synapse-archive.com/images/bKaMr/
https://sumuvesa.com/wp-includes/rgL/
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 2636 2104 regsvr32.exe 29 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1844 2104 regsvr32.exe 29 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1664 2104 regsvr32.exe 29 -
System Location Discovery: System Language Discovery 1 TTPs 4 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 EXCEL.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2104 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2104 EXCEL.EXE 2104 EXCEL.EXE 2104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 2636 2104 EXCEL.EXE 30 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1844 2104 EXCEL.EXE 31 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33 PID 2104 wrote to memory of 1664 2104 EXCEL.EXE 33
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\af7f1540e19b5a469573d5fedd33ffc1ce1dd157626306ecf5a80afb65b52952.xls1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Windows\SysWOW64\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:2636
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C:\Windows\SysWOW64\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:1844
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C:\Windows\SysWOW64\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:1664
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b