Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
27-09-2021 15:13
Static task
static1
Behavioral task
behavioral1
Sample
Compensation-1636332621-09272021.xls
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
Compensation-1636332621-09272021.xls
Resource
win10-en-20210920
General
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Target
Compensation-1636332621-09272021.xls
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Size
126KB
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MD5
16ff3a934cc31ee7e4407caed8b5160b
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SHA1
89bca4aae18925b44b7a6424567d15f8a0139c21
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SHA256
7b9347900e27559ba3fcfe186a57ee8d28f8c949442a5d12a4bf9f7ed459114d
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SHA512
f9dcb21be0c22d6e440e6ebeebfb70ee5229cf8bf2df8199a7b0d5fb57c8bfdbe459f763869108b3b48d2a93b0984115c63809a083349dc68e9ae0207dd3ce23
Malware Config
Extracted
http://190.14.37.178/44466.6343003472.dat
http://185.183.96.67/44466.6343003472.dat
http://185.250.148.213/44466.6343003472.dat
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.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 648 2168 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3968 2168 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3940 2168 regsvr32.exe EXCEL.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 2168 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE 2168 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2168 wrote to memory of 648 2168 EXCEL.EXE regsvr32.exe PID 2168 wrote to memory of 648 2168 EXCEL.EXE regsvr32.exe PID 2168 wrote to memory of 3968 2168 EXCEL.EXE regsvr32.exe PID 2168 wrote to memory of 3968 2168 EXCEL.EXE regsvr32.exe PID 2168 wrote to memory of 3940 2168 EXCEL.EXE regsvr32.exe PID 2168 wrote to memory of 3940 2168 EXCEL.EXE regsvr32.exe
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\Compensation-1636332621-09272021.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -silent ..\Drezd.red2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -silent ..\Drezd1.red2⤵
- Process spawned unexpected child process
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C:\Windows\SYSTEM32\regsvr32.exeregsvr32 -silent ..\Drezd2.red2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/648-278-0x0000000000000000-mapping.dmp
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memory/2168-115-0x00007FF739880000-0x00007FF73CE36000-memory.dmpFilesize
53.7MB
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memory/2168-117-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmpFilesize
64KB
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memory/2168-116-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmpFilesize
64KB
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memory/2168-118-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmpFilesize
64KB
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memory/2168-119-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmpFilesize
64KB
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memory/2168-123-0x00007FFB8C970000-0x00007FFB8C980000-memory.dmpFilesize
64KB
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memory/2168-122-0x00007FFBAD180000-0x00007FFBAE26E000-memory.dmpFilesize
16.9MB
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memory/2168-124-0x000002549FAA0000-0x00000254A1995000-memory.dmpFilesize
31.0MB
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memory/2168-277-0x00000254B44C0000-0x00000254B44C4000-memory.dmpFilesize
16KB
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memory/3940-280-0x0000000000000000-mapping.dmp
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memory/3968-279-0x0000000000000000-mapping.dmp