dbd3cd3680906bad2ff0e729cb233132c7e6d7cadeb75de3439258568b614e6a

General

Target

958347055205621700449740o 4852055245019831324131075o 228615864390803059918832974o 379324002128768677.pdf
Size

129KB
MD5

d9425d8d1ca227131d342801f44c10cb
SHA1

25cfc1420ccd149adf5d8994cc7044c6c4daf690
SHA256

dbd3cd3680906bad2ff0e729cb233132c7e6d7cadeb75de3439258568b614e6a
SHA512

0f473ee9eb3530f49beb931f0a72722398fb9746364358791ed79bd59ad78a36a47a2c23364e39168b0e9669dad2f8fcfd5b922932559efc2d9efe47defbeddd

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

Processes:

AcroRd32.exe

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

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

AcroRd32.exe

pid	process
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe
4072	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4072 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

4072 AcroRd32.exe
4072 AcroRd32.exe
4072 AcroRd32.exe
4072 AcroRd32.exe
4072 AcroRd32.exe
4072 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4072 wrote to memory of 1336	4072	AcroRd32.exe	RdrCEF.exe
PID 4072 wrote to memory of 1336	4072	AcroRd32.exe	RdrCEF.exe
PID 4072 wrote to memory of 1336	4072	AcroRd32.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3908	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe
PID 1336 wrote to memory of 3900	1336	RdrCEF.exe	RdrCEF.exe

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\958347055205621700449740o 4852055245019831324131075o 228615864390803059918832974o 379324002128768677.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:4072

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:1336

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=4AD53FA5F3A4E94650C7D6B66E16D369 --mojo-platform-channel-handle=1632 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3908

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=27A9654D56244274BD3B61FC82850A83 --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=1 --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=27A9654D56244274BD3B61FC82850A83 --renderer-client-id=2 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3900

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=C1114F7B6A7A15B0E60104FD9D7B9389 --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=1 --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=C1114F7B6A7A15B0E60104FD9D7B9389 --renderer-client-id=4 --mojo-platform-channel-handle=2232 --allow-no-sandbox-job /prefetch:1
3⤵
PID:2068

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=FE65929B5E123AC9AD44C7F2BB94A9D1 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2432

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=041560288CD8D1C190AE3510AD5B8ACA --mojo-platform-channel-handle=2728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2764

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=FDE4AC41B6BD45A47E3640D51E0B9A29 --mojo-platform-channel-handle=1616 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1716

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1336-118-0x0000000000000000-mapping.dmp

Download
memory/1716-143-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/1716-145-0x0000000000000000-mapping.dmp

Download
memory/1716-144-0x0000000000B94000-0x0000000000B95000-memory.dmp

Filesize
4KB

Download
memory/2068-129-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/2068-130-0x0000000000BB1000-0x0000000000BB2000-memory.dmp

Filesize
4KB

Download
memory/2068-131-0x0000000000000000-mapping.dmp

Download
memory/2432-137-0x0000000000000000-mapping.dmp

Download
memory/2432-135-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/2432-136-0x0000000001018000-0x0000000001019000-memory.dmp

Filesize
4KB

Download
memory/2764-141-0x0000000000000000-mapping.dmp

Download
memory/2764-140-0x0000000000B9D000-0x0000000000B9E000-memory.dmp

Filesize
4KB

Download
memory/2764-139-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/3900-125-0x0000000000000000-mapping.dmp

Download
memory/3900-128-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download
memory/3900-124-0x0000000000B91000-0x0000000000B92000-memory.dmp

Filesize
4KB

Download
memory/3900-127-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/3900-123-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/3908-119-0x0000000077652000-0x0000000077653000-memory.dmp

Filesize
4KB

Download
memory/3908-120-0x0000000001313000-0x0000000001314000-memory.dmp

Filesize
4KB

Download
memory/3908-121-0x0000000000000000-mapping.dmp

Download
memory/3908-122-0x0000000000F40000-0x0000000000F41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads