Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8baf8aaf13a39c…

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 14:41:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 937b06dd51398cc951785e67d84166c2 SHA-1: a63d0f71c4a9ef9d64ec7b0401b1f05b08169347 SHA-256: ed8baf8aaf13a39c9315ac0743966c4000f7145a8e0199c53f1066ec268a383d
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1071.001 Web Protocols

This PDF document uses a game hack lure to trick users into visiting a malicious URL, which impersonates a brand to phish for credentials. The primary URL, http://netcdn.co/app/431946152/cheat-roblox-pour-ninja-legends-game-hack, is the initial redirection point for this credential harvesting attempt. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing and potential credential theft campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/cheat-roblox-pour-ninja-legends-game-hack.
  • 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/cheat-roblox-pour-ninja-legends-game-hack PDF link annotation
    • http://library.stipjakarta.ac.id/etd/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/what-if-every-item-on-roblox-was-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-o-get-free-robux-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/r1-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-followers-on-tiktok-fast_GM835599320.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-card-codes-feb-21-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/robux-co-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-free-hats-list_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-2021-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/robux-generator-hack-exe_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/como-tener-hacks-de-armas-en-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-rape-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_off0000306e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306E 22580 bytes
SHA-256: 971cade77ca5126a459402baa0c1253a8f9b98e1b8d48acbad0f1f8c61894c3c
font_01_sfnt_off000062b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B7 19532 bytes
SHA-256: aa5ed2fe4b2428a561089efb5a384087ecdbdac2f92bd73028578495ec5fbe8e

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