7721b6505837f290c5a7789f7d390971b40c08765587572d0c0558b80c7c00bf

Analysis

max time kernel
140s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2023, 11:21

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General

Target
file.pdf
Size 3.0MB
Sample230526-nf8a6aff7x
SHA256 7721b6505837f290c5a7789f7d390971b40c08765587572d0c0558b80c7c00bf
MD5 c74080550fcdac44db1c498197f7a9f1
SHA1 2e7e61504847d44c5aa9193c0b979277a5a966e4
SHA512 830bc14012b0a01590ae5979a01a9bdd4c01e78c642ca300ac340c0e25bde33c32e17f13bfa96f5d8e0cc53f7afa5817b8f27cd0e24ef56b7bcbba875b24d803
SSDEEP 49152:BknNnBzlo2f6iz+/AphAd1/4VcT+AHZXh23MCRsc2Dft9iHQwmyCf+u:BEzPSJd1/oIRXCsc2btYHQwmyCfV
MD5 SHA1 SHA512 SSDEEP

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
740	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe
740	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 4328	740	AcroRd32.exe	83
PID 740 wrote to memory of 4328	740	AcroRd32.exe	83
PID 740 wrote to memory of 4328	740	AcroRd32.exe	83
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4208	4328	RdrCEF.exe	84
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85
PID 4328 wrote to memory of 4760	4328	RdrCEF.exe	85

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\file.pdf"
1⤵
- 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:740
- 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=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4328
- - 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=666704CEFD6CAB0DD1580C251A369D97 --mojo-platform-channel-handle=1624 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4208
- - 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=799595C8169AB563D6213D404B84BF28 --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=2 --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=799595C8169AB563D6213D404B84BF28 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4760
- - 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=79D705C40CCF321240697A32DB023601 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:912
- - 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=86C206F1AC9D17EBCEE928F07A7100F6 --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=2 --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=86C206F1AC9D17EBCEE928F07A7100F6 --renderer-client-id=5 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4296
- - 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=DE641CEF8961A4A1D12222C18BE9AD65 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3732
- - 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=1D3CC54F74D6C047142FD8994565C926 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:364

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1408

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 a9e6457e0e26f35b26d763a664fe95a4f5e4ae86293e45d6055ef2090ef8c0b6
MD5 abe09c92b230b34b60dde108976abb0f
SHA1 aee1ac4dbda8868c38a14eeb5a4f2e89aa23a050
SHA512 d119c6b4cf5c1dd5c5e797b8f63cfcb9014612cddea19e35b9663f8ffc859ea48b802e9114d5c2fe75623d215b77370b3625c2af06aa73163adf4cb759b5f053
SSDEEP 384:yeadThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:R+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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