b525b36a2c7b834b18f066ac6644a1b795dc910a7abcb618d3995682f19c355b

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 13:31

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General

Target

a4ba575582f7b662df97ef475b20e459.pdf
Size

75KB
MD5

a4ba575582f7b662df97ef475b20e459
SHA1

bc701d7daa19141fb9896879b092223cbb6ca890
SHA256

b525b36a2c7b834b18f066ac6644a1b795dc910a7abcb618d3995682f19c355b
SHA512

b9bd0e6102add0c7741d1526c9a8fd8b99cdac527e4793a235513d7c744d4bfcbecf13ef4d695e5a64a695ee7f968063e0aa9ec46b1cbb780e575d0015610c88
SSDEEP

1536:s8FWcFKsyhtYGgfQ5o9JNN3oPHvR98Mw2mA/gLwDeKOcVN1hsXRWpB0A:zFW0y0Gv58N9AHJ98/2TILwDeKOcVHSo

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4744	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe
4744	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 4724	4744	AcroRd32.exe	91
PID 4744 wrote to memory of 4724	4744	AcroRd32.exe	91
PID 4744 wrote to memory of 4724	4744	AcroRd32.exe	91
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4044	4724	RdrCEF.exe	92
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	RdrCEF.exe	93
PID 4724 wrote to memory of 4788	4724	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\a4ba575582f7b662df97ef475b20e459.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:4744
- 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:4724
- - 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=891C89CE22DF17ECB8BC846764130601 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4044
- - 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=B071BB5AF7ECF74B6A39C9803F019C80 --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=B071BB5AF7ECF74B6A39C9803F019C80 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4788
- - 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=97C5B6CCD77E7142B995A1B41C6F48B1 --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=97C5B6CCD77E7142B995A1B41C6F48B1 --renderer-client-id=4 --mojo-platform-channel-handle=2288 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4920
- - 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=F718DEA1D9F2C75A836DD15A4EF102CF --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4792
- - 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=7CAF5587053DAC2BB389DE8B3FBE182B --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    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=A8047441E3994A2C0CE1CBB535A2E042 --mojo-platform-channel-handle=1948 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3064

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1524

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
d223188191c8f0639089da03142f49ed

SHA1
636b4ce3d9e332a8b7ae8a47c11c2ce1285e5312

SHA256
574c8a132467bd7cca610a954a394fce2e4424bd103fc27f3934972b05e3bb9a

SHA512
00e7dbbfce55459bfc8d62f0fb1bc0165ab3109de37d3ec8fa919e2a375a1408972ede5570dcc009741136020efabb424a49eb072fff3ddb09d83bc455f3c7a7

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
memory/4744-27-0x000000000B310000-0x000000000B331000-memory.dmp

Filesize
132KB

Download