Analysis
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max time kernel
145s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
13-05-2021 12:56
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2073106428.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2073106428.xls
Resource
win10v20210408
General
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Target
catalog-2073106428.xls
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Size
367KB
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MD5
5bef2a4476c22f91d4b77802cbbd66dc
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SHA1
abee3e6b5e3a1b8c0d120387a11880f7863077c9
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SHA256
5aa78f2233eedc785ad90718ab50f74f23e893ff3523137b6bde7fea883280e1
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SHA512
439612d297e1c7f0fb56c43e80c3d260f316fa17b3d9fbd8cf3c09f5a2330d450208935747be6d814345db47c1c752769e182db2172d08e988fc13ca94ddf81c
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 3656 812 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 696 812 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 812 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE 812 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 812 wrote to memory of 3656 812 EXCEL.EXE rundll32.exe PID 812 wrote to memory of 3656 812 EXCEL.EXE rundll32.exe PID 812 wrote to memory of 696 812 EXCEL.EXE rundll32.exe PID 812 wrote to memory of 696 812 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-2073106428.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:812 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3656 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:696
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/696-180-0x0000000000000000-mapping.dmp
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memory/812-114-0x00007FF737B30000-0x00007FF73B0E6000-memory.dmpFilesize
53.7MB
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memory/812-115-0x00007FFA59300000-0x00007FFA59310000-memory.dmpFilesize
64KB
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memory/812-116-0x00007FFA59300000-0x00007FFA59310000-memory.dmpFilesize
64KB
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memory/812-117-0x00007FFA59300000-0x00007FFA59310000-memory.dmpFilesize
64KB
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memory/812-118-0x00007FFA59300000-0x00007FFA59310000-memory.dmpFilesize
64KB
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memory/812-122-0x00007FFA59300000-0x00007FFA59310000-memory.dmpFilesize
64KB
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memory/812-121-0x00007FFA7A200000-0x00007FFA7B2EE000-memory.dmpFilesize
16.9MB
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memory/812-123-0x0000024E75980000-0x0000024E77875000-memory.dmpFilesize
31.0MB
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memory/3656-179-0x0000000000000000-mapping.dmp