Analysis
-
max time kernel
139s -
max time network
134s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
25-02-2021 17:19
Behavioral task
behavioral1
Sample
document-1100242207.xls
Resource
win7v20201028
Behavioral task
behavioral2
Sample
document-1100242207.xls
Resource
win10v20201028
General
-
Target
document-1100242207.xls
-
Size
88KB
-
MD5
954d0877c5c24a81909a48b11c456122
-
SHA1
6388c4c76036560dbde22cec476367fc85df42de
-
SHA256
a5b8add7f3d2b50be086900fdfc81ea9666e7a87705a0e7e812c0edaa169e58d
-
SHA512
6d42c53df6c8d68d15169f0125485e4d1d7a69d87dacf931faf413dadb14180f3fc32deffdc5a63c4a2d5d0719ebe48df9f53f0ab277e988e7b176e59ff31e60
Malware Config
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2624 640 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 640 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 14 IoCs
Processes:
EXCEL.EXEpid process 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE 640 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 640 wrote to memory of 2624 640 EXCEL.EXE rundll32.exe PID 640 wrote to memory of 2624 640 EXCEL.EXE rundll32.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\document-1100242207.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\jkfledf.fkri,DllRegisterServer2⤵
- Process spawned unexpected child process
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/640-2-0x00007FFC11220000-0x00007FFC11230000-memory.dmpFilesize
64KB
-
memory/640-3-0x00007FFC11220000-0x00007FFC11230000-memory.dmpFilesize
64KB
-
memory/640-4-0x00007FFC11220000-0x00007FFC11230000-memory.dmpFilesize
64KB
-
memory/640-5-0x00007FFC11220000-0x00007FFC11230000-memory.dmpFilesize
64KB
-
memory/640-6-0x00007FFC345A0000-0x00007FFC34BD7000-memory.dmpFilesize
6.2MB
-
memory/2624-7-0x0000000000000000-mapping.dmp