b599fc1b876b38d074b8cd83e5ad92e3d0e1e6e039284a668d127f1c8143c1ef

Analysis

max time kernel
141s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 01:25

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General

Target

b599fc1b876b38d074b8cd83e5ad92e3d0e1e6e039284a668d127f1c8143c1ef.pdf
Size

53KB
MD5

9964113569cec2bae4b3508115b0074a
SHA1

98b0ea0ba96a8417fceed9b02d670315c58f3dba
SHA256

b599fc1b876b38d074b8cd83e5ad92e3d0e1e6e039284a668d127f1c8143c1ef
SHA512

91cb2e921423d2c9ce06fa67ff46c31d986dc35a6f2133767ff32531527baa90bb1d0dab6014d82a8cbf27a4f94afea789af0c672cbebb0dd934a4cf6fbe3431
SSDEEP

768:b0R/kstFfvPEcw3T1BpSyrE40GfkS3OrGZ+F4N2t+NBkm58ucK41Mh:bC/FFf0cw3l7BZkSoBF4kt4n5xqI

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4784	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe
4784	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 3240	4784	AcroRd32.exe	83
PID 4784 wrote to memory of 3240	4784	AcroRd32.exe	83
PID 4784 wrote to memory of 3240	4784	AcroRd32.exe	83
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 3144	3240	RdrCEF.exe	84
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85
PID 3240 wrote to memory of 4800	3240	RdrCEF.exe	85

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\b599fc1b876b38d074b8cd83e5ad92e3d0e1e6e039284a668d127f1c8143c1ef.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:4784
- 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:3240
- - 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=2C7EC0AF9F1AAFE57FBA24CF70DBD852 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3144
- - 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=E87C250390210D782170ADD8C9704506 --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=E87C250390210D782170ADD8C9704506 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4800
- - 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=5F8F205E9338BD92007D1AE53185DD79 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1136
- - 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=46DDF0361EB7FCA890BF539E86633C26 --mojo-platform-channel-handle=1908 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2524
- - 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=30DB599942500A8E0BF01C8BAEC38E4B --mojo-platform-channel-handle=2344 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4780
- - 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=C777559D5A7A5614AD9172D297755BCE --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=C777559D5A7A5614AD9172D297755BCE --renderer-client-id=7 --mojo-platform-channel-handle=2396 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3940

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4644

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
2d34d7c610bb31c7d3b3d2f082559d3a

SHA1
7edc6ca48f63939618206448997940e8a359b34f

SHA256
342bd880de65a5f1d49698f155bc32882328b0d2e888e63ebadc19058372105b

SHA512
580b5c2a1aa2a2bfdf01d6cf66667fb57df4a433df77abc1100b14daf4e92f10809bdcec49c06201adc2b416747245f6ebdc83c54a9d74c60a0692f726739586

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/4784-28-0x000000000B130000-0x000000000B180000-memory.dmp

Filesize
320KB

Download