Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb85c1249b0f4ae…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 01:28:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b35277d0054e5e5f346dd960c23db439 SHA-1: 7bbe75aec3c11dc920d97a3cc14c2b8a4702b657 SHA-256: afb85c1249b0f4ae257fad1f64dd8b6c0877b3ac3d003b557159a9700ee478eb
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/479516143/wurst-115-2-game-hack PDF link annotation
    • http://muslib.unmus.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/game-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-com_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-ad-videos-for-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/strucid-battle-royale-roblox-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/edit-avatar-roblox-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-using-inspect-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-items-in-roblox-catalog-working-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-miscreated-hacks_GM431946152.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_off00003225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3225 22324 bytes
SHA-256: ff1bf5d41a5c0a1bb32fc17f78c1593000f342a21e1f5cb93190b8f966de1413
font_01_sfnt_off000063e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E6 18440 bytes
SHA-256: 4d36fc7f60f6eefb2ae677e2271dd32deb7a6f06da798dd8a5534483c16757df

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