Analysis
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max time kernel
146s -
max time network
141s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2029944831.xls
Resource
win7v20210410
Behavioral task
behavioral2
Sample
catalog-2029944831.xls
Resource
win10v20210408
General
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Target
catalog-2029944831.xls
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Size
367KB
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MD5
ae4a7a4a50621c31e771b589f800cfd7
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SHA1
21020b2f44299266de362ae8817e08a6122e2c6b
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SHA256
d426f9e1657aa8a09fa039fe9c144fbe5bcb1ce054d8e63c5f9d7a7cbcd74bce
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SHA512
f80034fc0835c0b18e9f4d5926736471811bc8953702cc7554116e8168ff33c9a9346e2372f8fabef6d3ce5b331f779d5f532ddabf2f6a42920a71d2877e554c
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 3332 856 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3956 856 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 856 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE 856 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 856 wrote to memory of 3332 856 EXCEL.EXE rundll32.exe PID 856 wrote to memory of 3332 856 EXCEL.EXE rundll32.exe PID 856 wrote to memory of 3956 856 EXCEL.EXE rundll32.exe PID 856 wrote to memory of 3956 856 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-2029944831.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:856 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3332 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:3956
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/856-114-0x00007FF7554B0000-0x00007FF758A66000-memory.dmpFilesize
53.7MB
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memory/856-115-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmpFilesize
64KB
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memory/856-116-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmpFilesize
64KB
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memory/856-117-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmpFilesize
64KB
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memory/856-118-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmpFilesize
64KB
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memory/856-119-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmpFilesize
64KB
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memory/856-122-0x00007FF9FD810000-0x00007FF9FE8FE000-memory.dmpFilesize
16.9MB
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memory/856-123-0x00007FF9FB910000-0x00007FF9FD805000-memory.dmpFilesize
31.0MB
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memory/3332-179-0x0000000000000000-mapping.dmp
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memory/3956-180-0x0000000000000000-mapping.dmp