Analysis
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max time kernel
149s -
max time network
132s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2039169496.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2039169496.xls
Resource
win10v20210410
General
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Target
catalog-2039169496.xls
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Size
367KB
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MD5
2bda1337c502989c23fc8c75ada2c271
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SHA1
0a5930571088ad8f8ab7a51a5c057fc306b3fc53
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SHA256
39199c98bfedb5102657cfc5a6bebc7a82b26f9fd52b4e062e1cbf031bbb6535
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SHA512
ef36f008074fa8177e8965d3b660d21945c7970652a91afd81dadf468a4af94ad41d69af597316849b4906eba8e57ccc8ea088790513dba2dfc4655e4d6ac6ae
Malware Config
Signatures
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exerundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1272 4448 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1424 4448 rundll32.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 4448 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 4448 EXCEL.EXE 4448 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE 4448 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 4448 wrote to memory of 1272 4448 EXCEL.EXE rundll32.exe PID 4448 wrote to memory of 1272 4448 EXCEL.EXE rundll32.exe PID 4448 wrote to memory of 1424 4448 EXCEL.EXE rundll32.exe PID 4448 wrote to memory of 1424 4448 EXCEL.EXE rundll32.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\catalog-2039169496.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:4448 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1272 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1424
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1272-179-0x0000000000000000-mapping.dmp
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memory/1424-180-0x0000000000000000-mapping.dmp
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memory/4448-114-0x00007FF67F260000-0x00007FF682816000-memory.dmpFilesize
53.7MB
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memory/4448-115-0x00007FF9B3A10000-0x00007FF9B3A20000-memory.dmpFilesize
64KB
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memory/4448-116-0x00007FF9B3A10000-0x00007FF9B3A20000-memory.dmpFilesize
64KB
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memory/4448-117-0x00007FF9B3A10000-0x00007FF9B3A20000-memory.dmpFilesize
64KB
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memory/4448-118-0x00007FF9B3A10000-0x00007FF9B3A20000-memory.dmpFilesize
64KB
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memory/4448-122-0x00007FF9B3A10000-0x00007FF9B3A20000-memory.dmpFilesize
64KB
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memory/4448-121-0x00007FF9D41C0000-0x00007FF9D52AE000-memory.dmpFilesize
16.9MB
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memory/4448-123-0x000001B6A29D0000-0x000001B6A48C5000-memory.dmpFilesize
31.0MB