Malicious PDF — malware analysis report

Static analysis result for SHA-256 1030d7827e717402…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 21:42:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 71c5cae35876518d3ccf6bc7fe45fbe9 SHA-1: 7b32a4d011ead2aab2a9686247e7c59af70ff86c SHA-256: 1030d7827e7174021adede4a07bd31616f44e8a0fd61e88f73ff6992766ce2da
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/406889139/coin-master-32-hack-apk-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-retail-tycoon-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-ez-points-gg_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/pokemon-go-free-zangoose_GM1094591345.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/barren-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/nuke-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/create-roblox-gift-card-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-how-did-you-do-if-you-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-gamepasses-on-roblox-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/comment-gagner-400-robux-sans-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/play-games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-no-inspect-or-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/robux-for-free-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/cute-free-stuff-on-roblox_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
stream_002_off00002ff8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF8 22980 bytes
SHA-256: b2d1895cbfc0061f3ecfa94c3c28689f6c0b180bcd515c047697e7a4426e20b4
font_01_sfnt_off00006361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6361 18480 bytes
SHA-256: 6f2106b72f0d236263976b3a9712b975436fb2cc304285a0ef58938fd2824524

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