8d46119fbde3ebabde431384cf2a2747c13bbe1a6afa0020644799429e601462

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 03:51

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General

Target
4a5de1f2cef722bf2746b4320e69d333.pdf
Size 89KB
Sample240108-eexctsafbp
SHA256 8d46119fbde3ebabde431384cf2a2747c13bbe1a6afa0020644799429e601462
MD5 4a5de1f2cef722bf2746b4320e69d333
SHA1 cb7410b697957a124a2d4485ea3c5e90ccd0a1bb
SHA512 416620be8ace2bde7c5cf2408bfea6a9d2c0170b9ce9369f5da259e5ebb091ff6981b08450af9ba1dec8111abfd185d6f3985acdabec7bd1aec894a3e498b673
SSDEEP 1536:Ae0wS8D3VnA99pOEuEdTQ3D4bGlqlLketotdWhVWZAV2zNWaBqW8pO7Xf7jecm:3ZS8D3spOEuuTQz4bcqlLrAM4AkTBx7a
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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4960	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 2904	4960	AcroRd32.exe	91
PID 4960 wrote to memory of 2904	4960	AcroRd32.exe	91
PID 4960 wrote to memory of 2904	4960	AcroRd32.exe	91
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1300	2904	RdrCEF.exe	92
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93
PID 2904 wrote to memory of 1108	2904	RdrCEF.exe	93

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\4a5de1f2cef722bf2746b4320e69d333.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:4960
- 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:2904
- - 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=A4CC430ABE7CB860DFCF45B41A981CE3 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1300
- - 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=584F97F10E5BC3AD4366D7BFDF0B3D24 --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=584F97F10E5BC3AD4366D7BFDF0B3D24 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1108
- - 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=1937128380E391F90823C78BCBF54E41 --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=1937128380E391F90823C78BCBF54E41 --renderer-client-id=4 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2604
- - 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=E0CD39154F807585D87000CE75184D3D --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3800
- - 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=DAB75EF34D4101322F0D57ED1CB9E875 --mojo-platform-channel-handle=1964 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1116
- - 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=F506AD98F020CAD54344F82C83BB08BD --mojo-platform-channel-handle=1964 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4872

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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 64KB
SHA256 1bedd9b892ec186fc00423eb7c709d02bc38954181d04211a398733520bbbb39
MD5 858e9d88c86775e0643f587854e4f9d2
SHA1 09d321a5de916caa857b312d12289b5e8f3d19b2
SHA512 0491b1fefb3536ba66c3be1f3c5c562a2101f0cda049b1ffcb2d9cb684fe0a354c24d1a5c1f8d2089fead854c28485cf1c37db96d23dd2336e09137844967b85
SSDEEP 384:yeudThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:d+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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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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