Malicious PDF — malware analysis report

Static analysis result for SHA-256 2edeacdbd2910760…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 13:39:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0979981f327bb4b17bb12caaaf213450 SHA-1: 5519a3436efca6980f99d7e8e18bc71106651633 SHA-256: 2edeacdbd2910760a0062b31597d11fe86d0099dd3b97c5311b57f6c0c1bf0f1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links disguised as game hacks and free items, specifically targeting Roblox and Coin Master players. These links, such as http://netcdn.co/app/431946152/free-boy-clothes-roblox-game-hack, are designed to lure users to malicious websites. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malware distribution scheme.

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.co/app/431946152/free-boy-clothes-roblox-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/free-roblox-accounts-with-passwords-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-fashion-frenzy-game-free-online_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-no-verification-real_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-how-to-cheat-on-fantom-forces_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-promo-codes-no-human-verifycation_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robloxcom-free-avatar_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-hack-mad-city_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-icebreaker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-cheat-client_GM479516143.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_off00002fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC0 22152 bytes
SHA-256: a394c2feee74dacf0d5c29e76a43c16a085642bb285dfcb26e8e7b825c23a20e
font_01_sfnt_off000060f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F0 19100 bytes
SHA-256: b5f248f670e8f236b2ce240719e839f51327e62ecb1ced7d394b355f628de6ad

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