Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8a4d580d53937f…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 01:49:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 74a7092166b068e811098f949b11d749 SHA-1: a20fdcb970d3e92863b0cbb00476f97e0948add9 SHA-256: ed8a4d580d53937f611aa570a005ab2918a485ac4200985495c07567af65aaa1
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/free-roblox-hair-to-wear-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cheat-roblox-building-simulator_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/fe-dll-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cheat-fr-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/what-is-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-xbox-360-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-on-coin-master-2021_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_off00002f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F30 21920 bytes
SHA-256: 1b43d5c04388012733208bfea6a440a66902404ac2961a2464f114696ae80d27
font_01_sfnt_off00005f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F62 18968 bytes
SHA-256: 6830364f4dd1ddd86c6562c867680beb6ccb518dd817f0071f92a4a80892b398

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