6391900d4c90604bb28166d83636092a13e39afab007e70b6781da8c9e2c1de3

Analysis

max time kernel
141s
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
09/01/2024, 05:31

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General

Target

4d77696a319c1e672f0f5c5d0819fe2e.pdf
Size

90KB
MD5

4d77696a319c1e672f0f5c5d0819fe2e
SHA1

a65b2005f662cb4580cd70982be8c523998507fb
SHA256

6391900d4c90604bb28166d83636092a13e39afab007e70b6781da8c9e2c1de3
SHA512

4cf87ed41273b04280c4be9683bacf83271bcc93305a70e2a5fe89ef47d053fb29d40fa70f913049ed4fc275e093c10225ba25486894719c9e70372284d3218f
SSDEEP

1536:d97jiBwQVg/eMMF3rPv8nsuYizaCej0nCBUbZ4W33eYsIWXeik943OYiubWwpOSd:LjiFNL99izrCBUF3+YsneN9Kz+Sd

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 20 IoCs

pid	Process
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4808	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe
4808	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 1500	4808	AcroRd32.exe	96
PID 4808 wrote to memory of 1500	4808	AcroRd32.exe	96
PID 4808 wrote to memory of 1500	4808	AcroRd32.exe	96
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3160	1500	RdrCEF.exe	97
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98
PID 1500 wrote to memory of 3808	1500	RdrCEF.exe	98

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\4d77696a319c1e672f0f5c5d0819fe2e.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:4808
- 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:1500
- - 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=DA7E3D99A8C0D7F1679CF242A63F564E --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3160
- - 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=13D84269A399FB987179DC6B36D5D036 --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=13D84269A399FB987179DC6B36D5D036 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3808
- - 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=E09E7ECFE753DC509486298FBF872D1B --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=E09E7ECFE753DC509486298FBF872D1B --renderer-client-id=4 --mojo-platform-channel-handle=2032 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:408
- - 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=C6E9DEFD099A34784DBBBE8635E81ADF --mojo-platform-channel-handle=2428 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4868
- - 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=7E1B5768C4265A59A05DDB1FD743BA24 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4212
- - 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=B2D6F6DC367694DB613496005CE12D2B --mojo-platform-channel-handle=2204 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1956

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
1c255b9955e604b288315bbf1d2de7a2

SHA1
43e5c8ee432f3b83bfd90578b7215a9903e58535

SHA256
bef8b87619d99e0b9ed52a74fd83df785e8717543bc6f267c3f9a21a6f806df0

SHA512
37aa845309a87cb02df6fee5111a1114397c9228e1bd8f2173bb2b686442ca386e74bd456628189a7f95eb9751a6bf5a813199429c187b873741e7a7e71229d9

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