Malicious PDF — malware analysis report

Static analysis result for SHA-256 9926cb99af6a40d2…

MALICIOUS

PDF

34.0 KB Created: 2021-06-30 01:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 710df4fb87e6e88feb1a025bfe1628a4 SHA-1: a649b421ced259bb75f68ea51e51eccac3b5586b SHA-256: 9926cb99af6a40d2ea0fec5a41b4a8f5461d43fdf4fa8b580e65d7540a9a2cac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The document body explicitly mentions 'Roblox God Hack' and 'Robux Generator', directing users to click a link for access. The embedded URLs are designed to lead victims to potentially malicious websites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-god-hack-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hackers-tshirts-images_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/edit-avatar-roblox-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-that-only-needs-your-password_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-roblox-meep-city_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-cb-ro-hacks-skin_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-2021-codes_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/2021-hacker-face-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-on-phone_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
font_00_sfnt_off00002d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D63 22652 bytes
SHA-256: 6ac0e8f30cb3a5ab2c05a855e2ccb42ddc72e22f1ec80ed110deba47d3a72469
font_01_sfnt_off00006076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 18828 bytes
SHA-256: 5b5c3d3c899d66e65b5335c1f100c642b55c23cbec2110a928501fba33d3656c

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