Malicious PDF — malware analysis report

Static analysis result for SHA-256 120afee59439f0cc…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 11:39:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 94c4897f9dca2c36e0ed3a5f0b3a5b26 SHA-1: af0df5491a3bdced8212a6ebfd44d13493ee6f27 SHA-256: 120afee59439f0cc01e33552dd57bf6c208d37d712e97488c56eaf377fb10aa0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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://netcdn.tw/app/431946152/john-doe-roblox-hacker-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-army-base-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-for-free-no-password_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-roblox-catalog-items_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-someones-roblox-on-windows_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-faces-on-roblox-october-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-username-and-password-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E67 21596 bytes
SHA-256: 4f4d67f44936b46084b54b00acac56b0f262485c961727c70e92e1359a00c5dd
font_01_sfnt_off00005dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC0 19156 bytes
SHA-256: 0c40b0201fec1878228e7cb9b01e9bb8942dee9863cdae313c3d57d5d7014fd1

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