581ae82fd328b7c3a3c217645b1a701a99e5369650aa3acb7bb2c6c1d3b7b85a

Analysis

max time kernel
144s
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
25-12-2023 18:02

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General

Target

33032e75b7ba4a6d637fa3b70b728711.pdf
Size

84KB
MD5

33032e75b7ba4a6d637fa3b70b728711
SHA1

254db51c8383df4e04d33b7a8edad156e3b929c8
SHA256

581ae82fd328b7c3a3c217645b1a701a99e5369650aa3acb7bb2c6c1d3b7b85a
SHA512

7c42a116c939289d4ebeb93a560dc607fa7922b5f2bfad6ded8d7b5d5b7aa47c674e56c522db58e17084a669c0765d767bfca5442bebd5520d1ea8acf5dc6d71
SSDEEP

1536:cWAGeE8U/Hipqqlt4tNMze4oOLKC7FAUWAWexQaPWCpOVitWq60ZvxS:xA5UKpv4t6ze4oGZAUWo4VitWBig

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4508	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe
4508	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 4228	4508	AcroRd32.exe	90
PID 4508 wrote to memory of 4228	4508	AcroRd32.exe	90
PID 4508 wrote to memory of 4228	4508	AcroRd32.exe	90
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 624	4228	RdrCEF.exe	92
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	RdrCEF.exe	93
PID 4228 wrote to memory of 2868	4228	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\33032e75b7ba4a6d637fa3b70b728711.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:4508
- 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:4228
- - 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=BF34129076274BED0D8B523E48806EBB --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:624
- - 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=7D901884D3DAFBAF3C0F1CC2FC21ACC9 --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=7D901884D3DAFBAF3C0F1CC2FC21ACC9 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2868
- - 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=0AD5CD9751ED22385604882B1C3BC6E4 --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=0AD5CD9751ED22385604882B1C3BC6E4 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3168
- - 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=A4FDA138D856F73390D54BEA60517442 --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3172
- - 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=C3809CA082CB0F18F9675EF0CF9DCA86 --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1476
- - 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=C603ADF7DB327817DB4CEC37D982D556 --mojo-platform-channel-handle=2672 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3120

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4920

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
64KB

MD5
2131ca88158e2a22b1bcaeb9f356569d

SHA1
835f8611df4f95204700fbeade7c9140e16c173e

SHA256
9fa964972b1611865e5ae9c1e5cfb5f787defc97bc19af34501f83f556218c7c

SHA512
e7f83ee97780704c78109c4a4a1e3131cd69e8040647a1d03f6f56edeff6491975d7aa9781e4bf10faa4804b5d3a94ac784f279f2ea7417db83202857d39a229

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