Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3fb64a222dc282…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 00:54:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 92999e84987c0e615cd9710f5d5a37d8 SHA-1: 28819425554ada4961f79c3bebf19400102998b4 SHA-256: 6e3fb64a222dc282a707f1618ee2c874dcecec4bbb29e4b3d42ab93143908c43
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/479516143/minecraft-pe-hacks-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/114-4-hacks_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/music-hack-2021-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-roblox-accounts_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_off00005242.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5242 30252 bytes
SHA-256: 63a74348e27a230bf5b7cc82ad3a49496e771aa15bf367feccceaf383369ca5a
font_01_sfnt_off00008f5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5C 17892 bytes
SHA-256: fda2b16deba9a1c4b3626a8ad3479d009d1f56903d8778c05817a0c1608b8b5f

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