1b490b2d0459655c46522f7e31fbb40b32cb8e42b87325f3cde040cfa6ac2cf9

General

Target

AVISO DE COBRO MESUALIDADES.pdf
Size

87KB
MD5

858f0402eba52523a2ebcb89bfe14f84
SHA1

501504ff6611cb7f4bd00a5ef118b9702153c3c4
SHA256

1b490b2d0459655c46522f7e31fbb40b32cb8e42b87325f3cde040cfa6ac2cf9
SHA512

16508dbd3733fc1d88b9b00650c61c8577736d0bb7e9dfc9003a66ea2f81ab21132b9f3610c3b3b28550d985eeee6aeb3e798e1be6310ae628613a684b3c02f0

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-1-5-21-941723256-3451054534-3089625102-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

AcroRd32.exe

pid	process
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe
2504	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

2504 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

2504 AcroRd32.exe
2504 AcroRd32.exe
2504 AcroRd32.exe
2504 AcroRd32.exe
2504 AcroRd32.exe
2504 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 2504 wrote to memory of 868	2504	AcroRd32.exe	RdrCEF.exe
PID 2504 wrote to memory of 868	2504	AcroRd32.exe	RdrCEF.exe
PID 2504 wrote to memory of 868	2504	AcroRd32.exe	RdrCEF.exe
PID 2504 wrote to memory of 1856	2504	AcroRd32.exe	RdrCEF.exe
PID 2504 wrote to memory of 1856	2504	AcroRd32.exe	RdrCEF.exe
PID 2504 wrote to memory of 1856	2504	AcroRd32.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 656	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	RdrCEF.exe	RdrCEF.exe
PID 868 wrote to memory of 1408	868	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\AVISO DE COBRO MESUALIDADES.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:2504

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:868

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=DCC7B0069E803ED0213C3A259E98A9C5 --mojo-platform-channel-handle=1640 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:656

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=5022846AD1DF883443CDA46CEAC7EA55 --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=5022846AD1DF883443CDA46CEAC7EA55 --renderer-client-id=2 --mojo-platform-channel-handle=1648 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1408

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=C8848BA4BA310EB551F3F882523BC750 --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=C8848BA4BA310EB551F3F882523BC750 --renderer-client-id=4 --mojo-platform-channel-handle=2068 --allow-no-sandbox-job /prefetch:1
3⤵
PID:396

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=A123E3FB9057FDC5D1763FEADCA8D854 --mojo-platform-channel-handle=1688 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4008

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=EC766233EC18AAE587B7CCE94460E5F1 --mojo-platform-channel-handle=2476 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3540

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=E58D959924DC311F0AE1F3EAD5437167 --mojo-platform-channel-handle=1856 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1716

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⤵
PID:1856

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

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Downloads

memory/396-129-0x0000000000000000-mapping.dmp

Download
memory/396-128-0x0000000000FA9000-0x0000000000FAA000-memory.dmp

Filesize
4KB

Download
memory/396-127-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/656-117-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/656-120-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/656-119-0x0000000000000000-mapping.dmp

Download
memory/656-118-0x0000000000D64000-0x0000000000D65000-memory.dmp

Filesize
4KB

Download
memory/868-115-0x0000000000000000-mapping.dmp

Download
memory/1408-126-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1408-125-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1408-123-0x0000000000000000-mapping.dmp

Download
memory/1408-122-0x0000000000BB9000-0x0000000000BBA000-memory.dmp

Filesize
4KB

Download
memory/1408-121-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/1716-143-0x0000000000000000-mapping.dmp

Download
memory/1716-142-0x0000000000DD8000-0x0000000000DD9000-memory.dmp

Filesize
4KB

Download
memory/1716-141-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/1856-116-0x0000000000000000-mapping.dmp

Download
memory/3540-138-0x0000000000D17000-0x0000000000D18000-memory.dmp

Filesize
4KB

Download
memory/3540-137-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download
memory/3540-139-0x0000000000000000-mapping.dmp

Download
memory/4008-135-0x0000000000000000-mapping.dmp

Download
memory/4008-134-0x0000000001063000-0x0000000001064000-memory.dmp

Filesize
4KB

Download
memory/4008-133-0x0000000077D52000-0x0000000077D53000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads