Malicious PDF — malware analysis report

Static analysis result for SHA-256 92da26ef6c8d037e…

MALICIOUS

PDF

44.1 KB Created: 2021-06-04 06:32:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 20ef6835f5f8c7ee64a5372f79707fc8 SHA-1: 0ec69ab5b48e6dbc862e1f6c20d63f8feb06116e SHA-256: 92da26ef6c8d037e95c135104b9dfbffa2293a8ebe0e6515108a9c039411f59c
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 0.9865

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 https://netcdn.online/app/406889139/coin-master-70-spin-link-2021-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/get-more-robux_GM431946152.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
stream_004_off00004f16.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F16 25440 bytes
SHA-256: ef7fbcd0550dc0de66d81273583f8c5467fd5daef43e362a60da708607e681d0
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 18348 bytes
SHA-256: 3aa27ca2b5074155a6d55c4a086f76437c73bbd8756faa1ee68498049c11f83f

Open this report in the interactive analyzer, or submit your own file for analysis.