Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-11-2024 13:33
Behavioral task
behavioral1
Sample
All_Employee_Memo.pdf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
All_Employee_Memo.pdf
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
All_Employee_Memo.pdf
Resource
win10ltsc2021-20241023-en
Behavioral task
behavioral4
Sample
All_Employee_Memo.pdf
Resource
win11-20241007-en
General
-
Target
All_Employee_Memo.pdf
-
Size
41KB
-
MD5
651ec17c3f52d8ae3476c25d191b2ef8
-
SHA1
e69e0caba40c838f783eecfdaaa0596fac766120
-
SHA256
fd5cf4773e02134cc82de1cbe3476855181d1c8dd881a4cbeec5b99eca341f0e
-
SHA512
98f9c4e4647a3314c5b59803a1adcd5bbab67785364b036d162c8994bf1371e383a443bcebb9e20a57bf398b536e8a5589352df6611816d39a10c232f237a241
-
SSDEEP
768:ajKzzjgn1+qN5Mm3Ch22pPkk+N6LAH2NrqAYCNqUR7+X6FLKxlUYiDHnUQ6w:ajR1Lzq22lkk+gGsYCUa786FLoFiDHdf
Malware Config
Signatures
-
System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
RdrCEF.exeAcroRd32.exeRdrCEF.exeRdrCEF.exeRdrCEF.exeRdrCEF.exeRdrCEF.exeRdrCEF.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RdrCEF.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
AcroRd32.exedescription 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 -
Processes:
AcroRd32.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
AcroRd32.exepid Process 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
AcroRd32.exepid Process 3468 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
AcroRd32.exepid Process 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe 3468 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AcroRd32.exeRdrCEF.exedescription pid Process procid_target PID 3468 wrote to memory of 64 3468 AcroRd32.exe 90 PID 3468 wrote to memory of 64 3468 AcroRd32.exe 90 PID 3468 wrote to memory of 64 3468 AcroRd32.exe 90 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 4524 64 RdrCEF.exe 91 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92 PID 64 wrote to memory of 3964 64 RdrCEF.exe 92
Processes
-
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\Local\Temp\All_Employee_Memo.pdf"1⤵
- System Location Discovery: System Language Discovery
- 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:3468 -
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=165140432⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:64 -
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=C15DE6CA132EBE38CC0E2B1410DD45FD --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
- System Location Discovery: System Language Discovery
PID:4524
-
-
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=49FA8E8707999F486C0E45517F3C7AEB --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=4 --enable-main-frame-before-activation --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=49FA8E8707999F486C0E45517F3C7AEB --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:13⤵
- System Location Discovery: System Language Discovery
PID:3964
-
-
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=A2C67B9AF31ACB2265712CA826C86B71 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
- System Location Discovery: System Language Discovery
PID:1568
-
-
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=4522BD1141DB47D1817CA19EA86FD1D6 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
- System Location Discovery: System Language Discovery
PID:4488
-
-
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=73261BDC91D6F61C0324B290E8EAE139 --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=4 --enable-main-frame-before-activation --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=73261BDC91D6F61C0324B290E8EAE139 --renderer-client-id=6 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job /prefetch:13⤵
- System Location Discovery: System Language Discovery
PID:3136
-
-
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=4D53ED218946DD5443F6A4DE1FAC1160 --mojo-platform-channel-handle=2744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵
- System Location Discovery: System Language Discovery
PID:1636
-
-
-
C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:2952
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
64KB
MD5431e923443809a9f67bd68f77f2c4371
SHA1f515351f3e4aa16997a8982e8268873b28aa48d9
SHA256ae225c1c1817ef1e92eb102302cba55c1019f17f073cebc7e9b94d455f8bd033
SHA5122378c02ff2bd77570e9e47868686b1c86806d03b35deef0fc69d947b6a48ca79c58e281609b4890456c1ddb3ec33bd80426907da9416c0b70457e2970855c9a8
-
Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
-
Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5