731bd63b6d2017ef559685114c1a8ac02bc0d9f7daa4d67c2b0da3a355fab7af

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
19/12/2023, 12:44

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General

Target

271b881e2348d11c64f427414d986a67.pdf
Size

83KB
MD5

271b881e2348d11c64f427414d986a67
SHA1

bfa0bbd08964d1bd5ca2cc08d8eb1c3afe11400c
SHA256

731bd63b6d2017ef559685114c1a8ac02bc0d9f7daa4d67c2b0da3a355fab7af
SHA512

8428d07e9485005ce0c9fd23afb2288022a0063d750a55b4a02fbfdea13f27be6267309207e74c9edf7b0e5ffa4258fba944fe082c26b36951d242c1cf853c61
SSDEEP

1536:zuq1GF75/F/aFs7ADnvUd3upi929xJs3ZsxrxReu3KlWYpO2swOg8MgxWmjmfCe+:Sq1GF759yOan+i9xS3ZsxB3KM2RtgzKg

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
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1904	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe
1904	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 4180	1904	AcroRd32.exe	91
PID 1904 wrote to memory of 4180	1904	AcroRd32.exe	91
PID 1904 wrote to memory of 4180	1904	AcroRd32.exe	91
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 4924	4180	RdrCEF.exe	92
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	RdrCEF.exe	93
PID 4180 wrote to memory of 3780	4180	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\271b881e2348d11c64f427414d986a67.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:1904
- 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:4180
- - 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=4CDFB5F827122531A965DBC126FE6A46 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4924
- - 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=8EDFD893B749FBDBE3E582F88CAEA3EC --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=8EDFD893B749FBDBE3E582F88CAEA3EC --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3780
- - 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=3FBA9E80B64ADFC5A490326D77968B4C --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4964
- - 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=2E441FB70744DF88C72EBE9DAC3446D8 --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=2E441FB70744DF88C72EBE9DAC3446D8 --renderer-client-id=5 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2656
- - 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=7ABB84E31B130FFABA8F30656065A023 --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3488
- - 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=57C89922DFCAAF5D2A34B1EB8021CC7E --mojo-platform-channel-handle=1880 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1824

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4984

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
b79691084ade5d8ddffbe0d6901fe165

SHA1
f77edd614665b6e831ca6839747b08e1d23d11c1

SHA256
6a935cc6ba8890254b28ef9967afc9b7b30af163d5ac261e4ec3dade2cd6ecc2

SHA512
eeb7ab7dcf9685afe0aab42f8a34b343d553fa96d44c8fe3ec316d85d30218a2acfa24bb24cd3b28b622bd6d6a8dc244b030148185f1b158b54320ee93054e4a

Download Submit
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
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit