Analysis
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max time kernel
13s -
max time network
140s -
platform
windows10_x64 -
resource
win10 -
submitted
20/10/2020, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
doc_pack-651894405.xls
Resource
win7
Behavioral task
behavioral2
Sample
doc_pack-651894405.xls
Resource
win10
General
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Target
doc_pack-651894405.xls
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Size
62KB
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MD5
11a4bcbc6ad1ea09c928817e9606c971
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SHA1
3d9218b68d04d573907dc5df079ee8f7bd431ca8
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SHA256
e8a8179e1dcf8c5e6fb7b1d57442ff5a627a17fd4f7e09cfc4e5852097525ca7
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SHA512
e41eafd2157d7f1c4fad3f555784b3de7224f3c6927cd935a26755d7c0a6b3b453b706d67267261475adb0281a99ee97458e9691e70ea2ca8abd3d66b77dc649
Malware Config
Signatures
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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 2140 3788 DW20.EXE 66 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
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 behavior: AddClipboardFormatListener 1 IoCs
pid Process 3788 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3788 EXCEL.EXE 3788 EXCEL.EXE 2440 dwwin.exe 2440 dwwin.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE 3788 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3788 wrote to memory of 2140 3788 EXCEL.EXE 76 PID 3788 wrote to memory of 2140 3788 EXCEL.EXE 76 PID 2140 wrote to memory of 2440 2140 DW20.EXE 77 PID 2140 wrote to memory of 2440 2140 DW20.EXE 77
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\doc_pack-651894405.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3788 -
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 44362⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 44363⤵
- Suspicious behavior: EnumeratesProcesses
PID:2440
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