Analysis
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max time kernel
133s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20-11-2024 22:09
Behavioral task
behavioral1
Sample
595ed23465651a271ccc807e5526a4f43f09defb6c85f1c930ae4061c0498903.xls
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
595ed23465651a271ccc807e5526a4f43f09defb6c85f1c930ae4061c0498903.xls
Resource
win10v2004-20241007-en
General
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Target
595ed23465651a271ccc807e5526a4f43f09defb6c85f1c930ae4061c0498903.xls
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Size
51KB
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MD5
d1bf28ef721b854cf58ed7378092bbd2
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SHA1
28df89fe14a0a7bd02b46cc220bc4b14e4d08541
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SHA256
595ed23465651a271ccc807e5526a4f43f09defb6c85f1c930ae4061c0498903
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SHA512
de7ade732083f5ecb695e8958d7f23ecd079c0a6627668cb2c791d4dd6663fc580c94a6e6c0b860335c01455af745a7842ad1b40465f0dfc5c3c57dec3a85277
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SSDEEP
1536:ORKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+/43SaT3h86rdKRFvE:UKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMt
Malware Config
Extracted
https://bsprabodhini.org/content/BwV8Kq1EUUT5mlon5MD/
https://bb2play.com/wzzx/VcaXG4LsR7mOWebAI/
http://futaba.youchien.net/wp-content/AJ0vdv/
http://www.crazy97.com/wp-includes/VRppRwDg2dBW2NcQASF/
http://46.4.78.202/wp-content/xOvCgoYFAIVjwy6I/
http://britainsolicitors.com/wp-admin/2ysGFKDbYP5sJB0Xg/
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exedescription pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3944 1956 regsvr32.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.
Processes:
regsvr32.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid Process 1956 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid Process 1956 EXCEL.EXE 1956 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid Process 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE 1956 EXCEL.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
EXCEL.EXEdescription pid Process procid_target PID 1956 wrote to memory of 3944 1956 EXCEL.EXE 99 PID 1956 wrote to memory of 3944 1956 EXCEL.EXE 99 PID 1956 wrote to memory of 3944 1956 EXCEL.EXE 99
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\595ed23465651a271ccc807e5526a4f43f09defb6c85f1c930ae4061c0498903.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1956 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll2⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
PID:3944
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
114B
MD5e89f75f918dbdcee28604d4e09dd71d7
SHA1f9d9055e9878723a12063b47d4a1a5f58c3eb1e9
SHA2566dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
SHA5128df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0