Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0044476fe91da02…

MALICIOUS

PDF

37.5 KB Created: 2021-06-25 23:34:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8fc961eaec49f7137d937c1992823db6 SHA-1: 4e9a5d7cd47e58ecb1882cfc50bd92748a59398f SHA-256: a0044476fe91da022e9f4f3011597d68c7615fe6bee599701d4ae01e8208283d
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.co/app/431946152/how-to-buy-roblox-for-free-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-ninja-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/hack-that-lets-you-join-full-servers-on-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-cheat-in-roblox-ninja-legends_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-credit-card-payment-download-free_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-hacks-phantom-forces_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-join-game-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-gg-redeem-codes_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-faces-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CE4 22104 bytes
SHA-256: 58ae0269929fe741e2a8fbd1a6af59c495cd1e03094c712628e2934a45d96fae
font_01_sfnt_off00006d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9B 19132 bytes
SHA-256: a3f812128b37e72fe017c1c6bcac9da478f28c36fd86250b95c3d40b5010842a

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