527b73919245aa65f61e4f682487be3cb4203e511729a8755a20daf8bc49fb31

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01/08/2024, 21:12

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General

Target

03e9b421959296101f5bb6f024d31680N.pdf
Size

4.1MB
MD5

03e9b421959296101f5bb6f024d31680
SHA1

75ee67bddb1ea1f7c1cb4d2e8232e5e95d5f61b6
SHA256

527b73919245aa65f61e4f682487be3cb4203e511729a8755a20daf8bc49fb31
SHA512

e7a01d6ae1d62009635bc5238ede0e7336d91f3e681451c85f6dbb3fdf1ba0fb46c52b55156de43d9984b63309b1819c747b5e53af0f55eaea789de13abbdc4a
SSDEEP

98304:iItD4wFmXMzMF7CiROV/PlsDmPPJ1AjiKvPJeovk:iykwFmXMzMB7RunKKPR1sisUovk

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RdrCEF.exe

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-1-5-21-857544305-989156968-2929034274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4172	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe
4172	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 216	4172	AcroRd32.exe	86
PID 4172 wrote to memory of 216	4172	AcroRd32.exe	86
PID 4172 wrote to memory of 216	4172	AcroRd32.exe	86
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 3112	216	RdrCEF.exe	87
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88
PID 216 wrote to memory of 1812	216	RdrCEF.exe	88

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\03e9b421959296101f5bb6f024d31680N.pdf"
1⤵
- System Location Discovery: System Language Discovery
- 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:4172
- 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⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:216
- - 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=E832D99C3E9973471A3FFDFA4E46AB5C --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3112
- - 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=8D2E796A21B0429982B18C74A28E3B88 --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=8D2E796A21B0429982B18C74A28E3B88 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1812
- - 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=FF4F1062AAA67E60C5FB24B54312703E --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2352
- - 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=0817451CB7323E489BCD1E35B9E5F9C5 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:808
- - 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=9813FD2986F768D334D36384191F72E6 --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=9813FD2986F768D334D36384191F72E6 --renderer-client-id=6 --mojo-platform-channel-handle=1900 --allow-no-sandbox-job /prefetch:1
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1436
- - 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=8134FE356E44FA4386411B5FC8235715 --mojo-platform-channel-handle=2732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2832

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3984

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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
db2881c2441f1a7f763a04ca9f22a7b1

SHA1
199b8d2748b0528c8a277818f6be652b7418c6ea

SHA256
053424366fbf01db58946ffb296c3f03abe071dc77a320a04cb2e4ad36d28653

SHA512
e02d15f969e7d8339124cf5ab3a1a867d6853bdf708b4ae57a74b6c9c7f3bd2418070563aff3d2be53e274819315ad61d1986c05fdb7d091c25f6953979913da

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