Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
27-02-2024 00:44
Static task
static1
Behavioral task
behavioral1
Sample
a7c86b7371927e5e974df51e5b8bbfe5.xlsm
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a7c86b7371927e5e974df51e5b8bbfe5.xlsm
Resource
win10v2004-20240226-en
General
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Target
a7c86b7371927e5e974df51e5b8bbfe5.xlsm
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Size
6KB
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MD5
a7c86b7371927e5e974df51e5b8bbfe5
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SHA1
1a1ab7112be433e35ec3957cb4035e5d2e3cb997
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SHA256
e866520f919162d204b3d4632de1ce5e1cc259d0331adc2042adcbaeebbf59db
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SHA512
85d71ce0872d45eb9119554ed18faf13147b73bdc395db9ff4a238bbdf283c5135cd48dc31d72fe6a8d8deaf882bcb3b120be0f0d4ea74ebc1bbebc146ea8550
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SSDEEP
192:NDSbuS5brA2OmmfR08UhHFBFYuib98y7N+0:NEuuM2w21FYTb98y7J
Malware Config
Extracted
http://46.17.98.187/index.php
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.
Processes:
DW20.EXEdescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 2436 1600 DW20.EXE EXCEL.EXE -
Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdwwin.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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dwwin.exe -
Enumerates system info in registry 2 TTPs 5 IoCs
Processes:
EXCEL.EXEdwwin.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 Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dwwin.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dwwin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
EXCEL.EXEpid process 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE 1600 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
EXCEL.EXEDW20.EXEdescription pid process target process PID 1600 wrote to memory of 2436 1600 EXCEL.EXE DW20.EXE PID 1600 wrote to memory of 2436 1600 EXCEL.EXE DW20.EXE PID 2436 wrote to memory of 3232 2436 DW20.EXE dwwin.exe PID 2436 wrote to memory of 3232 2436 DW20.EXE dwwin.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\a7c86b7371927e5e974df51e5b8bbfe5.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1600 -
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 40322⤵
- Process spawned suspicious child process
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\system32\dwwin.exeC:\Windows\system32\dwwin.exe -x -s 40323⤵
- Checks processor information in registry
- Enumerates system info in registry
PID:3232
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3940 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:81⤵PID:2868