Malicious PDF — malware analysis report

Static analysis result for SHA-256 a32258f0a9a6c17d…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 09:51:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6e1051d6086909aa638289e76c020a0b SHA-1: 58d1fd905407698a262b7ac96ba38cdbac7467fc SHA-256: a32258f0a9a6c17dec0d0fc1ff862840af9540d0fcc593904dce802f89013bba
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, which is a common social engineering tactic to trick users into visiting malicious websites. The embedded URL directs to a site offering a 'free spin coin master hack', further reinforcing the scam. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/free-spin-coin-master-hack-2021-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/grab-points-login_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-spin-coin-master-iphone_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
stream_004_off0000528f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x528F 28764 bytes
SHA-256: 656f0149387f4507a22f90c35014faf6d1fd5cd3fb14f33a5211659d0bb8363e
font_01_sfnt_off000092ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92AB 18456 bytes
SHA-256: fb2d798100dc09ab9990163d1a71849b6ff749ff3ac9d3c750144c56980b6f28

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