Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ea1425338d1a07…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 14:26:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3851c129d4da7943e31e12313bb282cd SHA-1: dc124f9cc192c6cf71d57058533da73ca7994954 SHA-256: 95ea1425338d1a07cd4b161db9ec09c42f91acbde5e25c755ec533823fe7292a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a common lure of 'free Robux' and game hacks to entice users to click on embedded links. The primary malicious URL identified is http://netcdn.tw/app/431946152/free-robux-glitch-2021-game-hack, which likely serves as a redirector to a malicious site or directly hosts a payload. The ML classifier strongly indicated maliciousness, supporting the classification of this PDF as a malicious lure.

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/431946152/free-robux-glitch-2021-game-hack PDF link annotation
    • http://perpus.stmik-im.ac.id/repository/cch-ly-robux-free-ko-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-hack-roblox-life-in-paredise_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-how-to-get-free-robux-2021-hacks-no-scam_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/hack-dinero-en-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/pokemon-go-free-friend-codes_GM1094591345.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/roblox-bee-swarm-simulator-cheat-codes_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/best-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-for-kids-under-18_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-robux-wotking_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/fashion-frenzy-roblox-play-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/poki-with-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/free-redeem-exclusive-virtual-item-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stmik-im.ac.id/repository/sk8r-roblox-hack_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_off00003007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3007 22424 bytes
SHA-256: 7258565457dfc36d853b6149b2bdaac6f6ff5d576d5b8e3050886b7f154d8c07
font_01_sfnt_off000061ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BA 19396 bytes
SHA-256: b675b3c69fda10c6b578fe48f18c9c179019e755b02dfc5731833863d4e2aded

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