673eea44f74f5cae3ee0585bc23211a46f797cfeb46072781d4018199b78665b

Analysis

max time kernel
140s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30/03/2023, 21:24

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General

Target

Caratulas.pdf
Size

743KB
MD5

d831d182e1fac9b8cc9e6528a46d8aa3
SHA1

7116b180cd881fc00c0f5f0b76af8dda99a6dece
SHA256

673eea44f74f5cae3ee0585bc23211a46f797cfeb46072781d4018199b78665b
SHA512

89cd8063da15b9e2c63c48c65d2eee4ae89189d4737f8ef84c3bc96c82749fd30d441a7456deda182002bb97299da0ed9c170265bcbdfd833940cba7956434e0
SSDEEP

12288:AfKTfXLN6GPH89sG3Y6Z079dzj1+Jc/fhXqkaQNri92IoToE96Ey8:IKTfJ6m89sGok07LjH/fFqkvc2ICoEw8

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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3736	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe
3736	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3736 wrote to memory of 4400	3736	AcroRd32.exe	86
PID 3736 wrote to memory of 4400	3736	AcroRd32.exe	86
PID 3736 wrote to memory of 4400	3736	AcroRd32.exe	86
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 2492	4400	RdrCEF.exe	88
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89
PID 4400 wrote to memory of 1316	4400	RdrCEF.exe	89

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\Caratulas.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:3736
- 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:4400
- - 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=13E70309C0E0B6D2CD01CABEDA8C5060 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2492
- - 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=8679085407016E0DEFCA93E4E0ED3BD0 --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=2 --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=8679085407016E0DEFCA93E4E0ED3BD0 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1316
- - 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=0F3E271AB29C756637EB4DB0F42CC9D3 --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=2 --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=0F3E271AB29C756637EB4DB0F42CC9D3 --renderer-client-id=4 --mojo-platform-channel-handle=2300 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3608
- - 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=F22E3E8B0058131FE1DCDF5A7E0F1049 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1112
- - 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=22974B0533FAE818C236251DB899FF08 --mojo-platform-channel-handle=2644 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4896
- - 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=D81A90E03923A49A088A09693AF7D0B5 --mojo-platform-channel-handle=1916 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2700

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4012

Network

MITRE ATT&CK Enterprise v6

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
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
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
486404d5b51d8306ea2006c006363038

SHA1
49b0e3ec1fc81df0d632bd313165ec35f284d65b

SHA256
609c3418c65f65a19104653bbe5cab857a2620a3314789640b1caacc26ccc656

SHA512
38e4eb4bcf76fe1e68ec960627ff5cbb9af5bde8cd8ec0b9c568278b87440dc558ab9cb2526f9a72d17f36d69ea9455f8064f15c5b5e9c1c1a4c194306807b7f

Download Submit
memory/3736-159-0x0000000009A10000-0x0000000009A31000-memory.dmp

Filesize
132KB

Download