Analysis
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max time kernel
145s -
max time network
142s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
catalog-2043858833.xls
Resource
win7v20210408
Behavioral task
behavioral2
Sample
catalog-2043858833.xls
Resource
win10v20210408
General
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Target
catalog-2043858833.xls
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Size
367KB
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MD5
ae337c088028668f0e2bff8cd4720611
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SHA1
294e9a17d11705de3f7b6302b70326f4e6e6fa00
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SHA256
3a2de618fccfc9d477a964e00221a4f05ef00097060928f42de14e6ae2a2f1d3
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SHA512
adafd08029699da6f5d996b92a9830612c546c5045e331dcfd37267031f52d9837bb7f3ff1a13d0581ba8e279aaa71aafdfde0cc332a6e89c46cf9ec64733aab
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 2052 1040 rundll32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 700 1040 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 1040 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1040 wrote to memory of 2052 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2052 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 700 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 700 1040 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-2043858833.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2052 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\tuti.rut1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:700
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/700-180-0x0000000000000000-mapping.dmp
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memory/1040-114-0x00007FF612D50000-0x00007FF616306000-memory.dmpFilesize
53.7MB
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memory/1040-115-0x00007FFC3AEC0000-0x00007FFC3AED0000-memory.dmpFilesize
64KB
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memory/1040-116-0x00007FFC3AEC0000-0x00007FFC3AED0000-memory.dmpFilesize
64KB
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memory/1040-117-0x00007FFC3AEC0000-0x00007FFC3AED0000-memory.dmpFilesize
64KB
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memory/1040-118-0x00007FFC3AEC0000-0x00007FFC3AED0000-memory.dmpFilesize
64KB
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memory/1040-121-0x00007FFC3AEC0000-0x00007FFC3AED0000-memory.dmpFilesize
64KB
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memory/1040-122-0x00007FFC5B5B0000-0x00007FFC5C69E000-memory.dmpFilesize
16.9MB
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memory/1040-123-0x00007FFC596B0000-0x00007FFC5B5A5000-memory.dmpFilesize
31.0MB
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memory/2052-179-0x0000000000000000-mapping.dmp