81ce60a7b9e64456e5a3786a29a3f3189825c20f8aafb780cf01efe812fa9e5e

Analysis

max time kernel
141s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 12:03

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General

Target

CERTIFICADO NR-17 (reciclagem).pdf
Size

846KB
MD5

c787f99d7427e6c10a0e977eeccd1fd1
SHA1

e500db3a9cdaf124850f8632891c307aba937421
SHA256

342daab4b12703af8ffa692e2ae6259ffefb1e3bdeb17cebbddf3560db9320ae
SHA512

aa63ac8ef545c3684dc1c7e1552ccc8071ea389885e0ee5b9871bae9cae4ac2556c4afff86e62c9b2296ccb341dde0e22bdae7bdca15c564416142f390b00cdb
SSDEEP

12288:xkZiYIe9joH2cWHp5khR8WiOjkk84sW1TBrxPjVDCogWnK7YRRRhe:xkbIisHeHrCU81fVDJa4e

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-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1392	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe
1392	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 3116	1392	AcroRd32.exe	95
PID 1392 wrote to memory of 3116	1392	AcroRd32.exe	95
PID 1392 wrote to memory of 3116	1392	AcroRd32.exe	95
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 3904	3116	RdrCEF.exe	96
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97
PID 3116 wrote to memory of 4256	3116	RdrCEF.exe	97

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\CERTIFICADO NR-17 (reciclagem).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:1392
- 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:3116
- - 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=9A8FDC40B5B96B9AD9F84095C74AFB57 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3904
- - 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=88A1A60D71E76C6FE0D499DB67097A71 --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=88A1A60D71E76C6FE0D499DB67097A71 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4256
- - 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=F9513EBF90365B20282E3B4059E4F513 --mojo-platform-channel-handle=2156 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4880
- - 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=FCCF7A6F00EE73512FE95E6CCDE8B166 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3272
- - 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=37338AD4E40CA8BDE21145341274D6E8 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4956
- - 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=EC2AAB7FDD94883B70FFCF3BED9CB7F3 --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=EC2AAB7FDD94883B70FFCF3BED9CB7F3 --renderer-client-id=7 --mojo-platform-channel-handle=2528 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4684

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:452

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
c49d577dfbdd8183dbf1512cb588eb5e

SHA1
be8f54422387498e6a97572e66befb2f0cb4af8c

SHA256
86816bcccf3fb4f46f71bca22c4a555302f4d9f6ded280d84f74665146a72340

SHA512
828bda4b8ccc95b1741dcff54510ce7f425e80b940178a4cedba7ba3f30167a4249fae9815c7889b30a95a5c3d05526fff4fcfb6352d165580e6d630d21043c2

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