Malicious PDF — malware analysis report

Static analysis result for SHA-256 55a8d6eeadbfba60…

MALICIOUS

PDF

60.4 KB Created: 2021-04-06 00:12:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9fc0fd13efea98f5659dcfc484f9201e SHA-1: 55c2365a4083cc2c72362e0731da89bdc6f45936 SHA-256: 55a8d6eeadbfba600ac678d6180c1d0ccc2a54edb5dffb37c16a4cf67482ab17
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure impersonating PayPal, directing users to click a link for free Roblox items. This link leads to a malicious website, indicating a credential phishing or scam attempt. The ML classifier also flagged the PDF as malicious, supporting the observed attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6193

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://gaminggenerator.org/app/431946152/how-to-get-free-items-on-roblox-hack.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://gaminggenerator.org/app/431946152/how-to-get-free-items-on-roblox-hack PDF link annotation
    • https://www.inova-cuisine.fr/images/how-to-hack-on-roblox-on-skywars.pdfIn PDF document text
    • https://bancroftandsons.com/images/sword-fighting-roblox-game-free-to-copy.pdfIn PDF document text
    • http://biccairo.com/images/roblox-speed-run-4-level-27-cheat.pdfIn PDF document text
    • https://ballaratcaravans.com.au/images/free-face-roblox-youtube.pdfIn PDF document text
    • https://www.millatgears.com/images/roblox-download-free-chromebook.pdfIn PDF document text
    • https://www.albisser.ch/images/free-robux-hackorg.pdfIn PDF document text
    • http://laplazuelacafe.com/images/free-robux-2021-april-wow.pdfIn PDF document text
    • https://www.osoc.com/images/roblox-free-shopping-mod.pdfIn PDF document text
    • http://www.vktzunami.cz/images/roblox-project-pokemon-hack.pdfIn PDF document text
    • https://www.lavigny.ch/images/how-to-get-50-robux-for-free.pdfIn PDF document text
    • http://karolinaherrera.com/images/free-robux-no-scams-2021.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/how-to-get-free-robux-2021-september.pdfIn PDF document text
    • https://www.hobbypcb.com/images/robux-free-no-pay-no-verification.pdfIn PDF document text
    • http://aeroclub-kaernten.at/images/roblox-glitches-and-cheats-2021.pdfIn PDF document text
    • http://fabianslaw.org/images/ghow-to-get-free-robux-on-computer.pdfIn PDF document text
    • https://fkg.usu.ac.id/images/free-money-roblox-jailbreak-hack.pdfIn PDF document text
    • https://cormixhydro.ru/images/como-hackear-cuentas-de-roblox-sin-necesidad-de-contrasea.pdfIn PDF document text
    • https://www.quistschoenenhalsteren.nl/images/steam-free-robux-live-now.pdfIn PDF document text
    • http://prodent.com.ua/images/free-robux-hack-that-really-really-actually-works.pdfIn PDF document text
    • http://akademiatenisa.org/images/redeem-roblox-codes-free.pdfIn PDF document text
    • http://www.evaplast.by/images/roblox-champion-tshirt-free.pdfIn PDF document text
    • http://immobil-service.it/images/how-to-hack-someones-account-roblox.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-case-clicker-cheats.pdfIn PDF document text
    • http://keepcasscountybeautiful.com/images/how-do-u-get-free-builders-club-on-roblox.pdfIn PDF document text
    • http://www.vktzunami.cz/images/apocalypse-rising-roblox-hack.pdfIn PDF document text
    • http://keepcasscountybeautiful.com/images/roblox-weight-lifting-simulator-2-hack.pdfIn PDF document text
    • http://farwesterndistrict.org/images/unlimited-robux-hack-add.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-robux-100-real-plus-proof-2021.pdfIn PDF document text
    • http://w-i-r.de/images/free-roblox-backdoor-to-earn-robux.pdfIn PDF document text
    • http://shinarb.by/images/speed-hacks-in-roblox.pdfIn PDF document text
    • https://gestionpatrimonial.net/images/knife-server-roblox-hack-script-pastebin.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-codes-free-robux-2021.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-redeem-codes-2021.pdfIn PDF document text
    • http://moto98.com/images/androeed-ru-roblox-hack.pdfIn PDF document text
    • http://bunadsmaria.com/images/download-roblox-hack-for-pc.pdfIn PDF document text
    • http://www.adravietnam.org/images/stickmasterluke-free-robux-game.pdfIn PDF document text
    • http://internetdeputy.com/images/how-to-get-2021-robux-on-roblox-for-free-2021.pdfIn PDF document text
    • https://www.beaufortcollege.ie/images/dashing-simulator-roblox-hack.pdfIn PDF document text
    • http://baah.ca/images/how-to-get-free-robux-on-computer-2021.pdfIn PDF document text
    • http://famoirs.co.uk/images/how-to-change-your-username-for-free-on-roblox.pdfIn PDF document text
    • https://gafaseo.com/images/omg-this-worked-how-to-get-1-million-free-robux.pdfIn PDF document text
    • http://jwcrownlimo.net/images/free-robux-link-inspect.pdfIn PDF document text
    • http://mittlenberg.ch/images/robux-hack-v6-5-pastebin.pdfIn PDF document text
    • http://www.ntc.edu.za/images/destroying-roblox-hack.pdfIn PDF document text
    • https://amatq.ca/images/elite-hacks-robux.pdfIn PDF document text
    • http://www.maakherumusic.net/images/ant-man-helmet-roblox-free.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-robux-no-hacking-account.pdfIn PDF document text
    • http://www.rezbb.sk/images/free-roblox-accounts-2021-with-robux-august-2021.pdfIn PDF document text
    • http://grand-ural74.ru/images/roblox-apocalypse-rising-hack-exploit.pdfIn PDF document text
    +18 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000849d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x849D 25828 bytes
SHA-256: 9858f2d51bf1670aa031a78bae8a4d20d9e1519700119bd72ec1157effb37a56
font_01_sfnt_off0000bde2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE2 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000c792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC792 18600 bytes
SHA-256: d9cf9e57c0e036b214c99869c26980b97e945a5dc8a141c9de2c981a6a674b25

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