Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e0d2fdbc2bce09…

MALICIOUS

PDF

33.7 KB Created: 2021-06-29 05:15:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bfcbce9dc68532721de2e74a9a488a8f SHA-1: 99f16c80743123cdf0d6ce14f2c1ff471cd32ea8 SHA-256: 18e0d2fdbc2bce09b657a086d6a63fb7cadc4b4869cdc4c1a4290bda4c77c10c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The primary lure URL is http://netcdn.co/app/431946152/hack-for-counter-blox-roblox-game-hack, which is identified as a malicious redirector. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack-for-counter-blox-roblox-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-obby-link-in-description_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/lazyblocks-com-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-free-download_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hacking-robux-for-money_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-look-cool-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-hacks-for-strucid_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-roblox-items-codes_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/hack-murder-mystery-2-roblox-a-telecharger_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-free-robux-unlimited-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/tokyo-ghoul-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-2021-no-survey-no-download-no-pasting_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-assassin-free-tokens_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD3 22352 bytes
SHA-256: cac81d4d7cff451c54c32b0a16e969d43ffcc36aa1ccd360c2bc6e3759444170
font_01_sfnt_off00005e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6A 19064 bytes
SHA-256: ef4aa6b6885e581b24a2c212d62dd60e152397910922ed7ff0dc903e0cca9531

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