6050cd97055c06f2bf56999b56fd631b72dcb3807b5071b795e251b80f9f5dce

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 04:42

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General

Target

28a2a7a276f7f98cf5d9163267b3ed41.pdf
Size

71KB
MD5

28a2a7a276f7f98cf5d9163267b3ed41
SHA1

925c84b81e47cfa3d94d5a15da4299455b0daaae
SHA256

6050cd97055c06f2bf56999b56fd631b72dcb3807b5071b795e251b80f9f5dce
SHA512

be8e3f656e7e0fa79026693fee191426c8a7ad48e209c6a154ffeab94cd6a7d6201c963843393abedd03ed3ab6cef51b1b0075f0ddecf7023d2caa7545b56772
SSDEEP

1536:n78pmlQzdx3Xe4bJQudEJyYtKzKikJ87NGPYR2+Cen2oGU:78pmlQzdR1bJZdEUYtKzTxGPYA+3n28

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4396	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe
4396	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 4000	4396	AcroRd32.exe	91
PID 4396 wrote to memory of 4000	4396	AcroRd32.exe	91
PID 4396 wrote to memory of 4000	4396	AcroRd32.exe	91
PID 4396 wrote to memory of 2856	4396	AcroRd32.exe	92
PID 4396 wrote to memory of 2856	4396	AcroRd32.exe	92
PID 4396 wrote to memory of 2856	4396	AcroRd32.exe	92
PID 4396 wrote to memory of 4704	4396	AcroRd32.exe	95
PID 4396 wrote to memory of 4704	4396	AcroRd32.exe	95
PID 4396 wrote to memory of 4704	4396	AcroRd32.exe	95
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 3588	4704	RdrCEF.exe	96
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97
PID 4704 wrote to memory of 4484	4704	RdrCEF.exe	97

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\28a2a7a276f7f98cf5d9163267b3ed41.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:4396
- 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⤵
  PID:4000
- 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⤵
  PID:2856
- 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:4704
- - 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=A975D4977D21537D97318815CBEE67E4 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3588
- - 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=AE4C0995AF6C03C413CCCCAA6FD85B36 --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=AE4C0995AF6C03C413CCCCAA6FD85B36 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4484
- - 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=953F483164EE47FC521D5BB4893EFA13 --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=953F483164EE47FC521D5BB4893EFA13 --renderer-client-id=4 --mojo-platform-channel-handle=2152 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2964
- - 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=AFB3926D64FE1E2550657B2A6B06C494 --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1964
- - 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=5B01FDAD4CAB21ACC8D0462538F0B394 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4332
- - 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=8E009BB3C020F0CB28427FF33D42C3B1 --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1000

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1972

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

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
95fde01e627fe1c9bbcc873beaf2e794

SHA1
6e69d6ff5147493b0c56d769ce27c51ef08c82ec

SHA256
75fc43699ee7b1b82253cbd63433fe03d65d8f516dbfcaeed61467eabe2e40cb

SHA512
b65fefecc2d08d90608e2f2a77226bac2592978f5ade53b88f11287b0263932b2cfa447551deb5ab6bfded8213930a7b4fa49ca6bf33898c66f8f0370398750c

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit