81ce60a7b9e64456e5a3786a29a3f3189825c20f8aafb780cf01efe812fa9e5e

Analysis

max time kernel
102s
max time network
94s
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

EMISSO_DE_CERTIFICADO NR 06.pdf
Size

819KB
MD5

29d81e23b0ea2509b6d54527ca3a3bf9
SHA1

a34f10118afc0b0bc5d192bfdaa8de7a3e89dabb
SHA256

f385d8ae75a6b08dba20f9425653e4129102933c68f5b556233f59cc4336b101
SHA512

72cc86a9cde8cfb62d5837d51925acba7303394de62aa7bd53da12f85cfbb54b5957e0a1d1e02d5a08e4b9dbc52aa654578b47b31ff8a58ed23cde10d97f0abf
SSDEEP

12288:bkZiYIe9joH2cWHp5khR8WiOjkk84sW1TBrxGDsdYRbrgOCdjqC7i:bkbIisHeHrCU810VEjfi

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

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4104	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe
4104	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 2412	4104	AcroRd32.exe	95
PID 4104 wrote to memory of 2412	4104	AcroRd32.exe	95
PID 4104 wrote to memory of 2412	4104	AcroRd32.exe	95
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 1852	2412	RdrCEF.exe	96
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	RdrCEF.exe	97
PID 2412 wrote to memory of 4772	2412	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\EMISSO_DE_CERTIFICADO NR 06.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:4104
- 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:2412
- - 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=96B174C0D2EDC4F419C0939E17DC0694 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1852
- - 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=F64B852C04EEC790E22181F0828287CD --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=F64B852C04EEC790E22181F0828287CD --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4772
- - 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=A0EDACF090FB393FCCC9F4F131FDB097 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3820
- - 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=6D0607C036C80D7BEFEC31517FB4E3F4 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1000
- - 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=F9118FBE87EC230562B9A601EFFD3394 --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=F9118FBE87EC230562B9A601EFFD3394 --renderer-client-id=6 --mojo-platform-channel-handle=2512 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1116
- - 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=571B639B06F9C78A1260A0BDAE8746FF --mojo-platform-channel-handle=2368 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2860

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4960

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
2aa0391cb8671ec2ec88d8d8339ffcdf

SHA1
3cb439538c82011c1e2c2a1adbc486feb2ab5274

SHA256
dc91d59d021ac0aed906ad3a30b565c0c9787a17fd70b9dbe199c0094d3816a5

SHA512
1d487a089967522c7ea33f812731a49ced7af5e8a3e703b09df576399a33042fbce3a9d56194057790e99eb16292784eb5cf090955a40daafadcd008187e59e6

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