Analysis
- max time kernel
124s - max time network
147s - platform
windows10_x64 - resource
win10v200430 - submitted
17/07/2020, 16:13
Static task
static1
Behavioral task
behavioral1
Sample
notice_4275872.xls
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
notice_4275872.xls
Resource
win10v200430
0 signatures
0 seconds
General
- Target notice_4275872.xls
- Size 368KB
- Sample200717-tgrahfvntn
- SHA256 b61ae5b6a687b1a94ab933eddbff0e14c0521a4207dff363b150975c7fa54e4d
- MD5 f030fcf4d8152a7f6e25ebc42bad516f
- SHA1 c8b2b0bc752f1a26ca4d9c74eed3ec8ada870a56
- SHA512 ec55f93d9c7960eb788ec65fff661d1526c4ca96d9902480ff8fc347e9b63a45c8ceae796918e89c4e36d4a6da4e733f0d362abb6132bab4f9ed8442032cf873
- MD5 SHA1 SHA512
Score
6/10
Malware Config
Signatures
- Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2536 wrote to memory of 2248 2536 EXCEL.EXE 71 PID 2536 wrote to memory of 2248 2536 EXCEL.EXE 71 PID 2248 wrote to memory of 3688 2248 DW20.EXE 72 PID 2248 wrote to memory of 3688 2248 DW20.EXE 72 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description 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 use of SetWindowsHookEx 8 IoCs
pid Process 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE 2536 EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2536 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2536 EXCEL.EXE 2536 EXCEL.EXE 3688 dwwin.exe 3688 dwwin.exe - Process spawned suspicious child process 1 IoCs
This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2248 2536 DW20.EXE 67
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\notice_4275872.xls"1⤵
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:2536 -
C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE"C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 45282⤵
- Suspicious use of WriteProcessMemory
- Process spawned suspicious child process
PID:2248 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 45283⤵
- Suspicious behavior: EnumeratesProcesses
PID:3688
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