Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c695c891c4bd319…

MALICIOUS

PDF

36.0 KB Created: 2021-07-01 02:01:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dd8b8434dbac72e96013dfe2b5bb8488 SHA-1: d6c561eb04e6883fed8a8dfc72964866b1464571 SHA-256: 1c695c891c4bd319e46f740423e4f8ac69cb7ac896e6887d7dfe7fdeb46f5531
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.co/app/431946152/super-power-training-simulator-roblox-script-hack-pastebin-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/free-robux-2021-no-hack-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/pokeballs-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-do-you-make-tshirts-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-robux-hacks-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/games-that-give-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-attacks-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-cods-free-roblox-obc-or-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-easy-for-kids-fof-noobs_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-magnet-sim-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/does-roblox-good-at-detecting-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/urban-420-network-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-pastebin-no-wait-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-real-generator_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-vip-on-roblox-fashion-famous_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-do-you-hack-in-critical-strike-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
font_00_sfnt_off000031f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F5 22920 bytes
SHA-256: cb3fb0eb5346a860ea214f904faa56ec14ea78960a3e6537c05b4745e5c25efc
font_01_sfnt_off00006577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6577 19772 bytes
SHA-256: cb94ea63fce2d3344d36658987ae5b705883a11f95299a241e506b5a4e5f3f43

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