Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dab7676a016a098…

MALICIOUS

PDF

35.4 KB Created: 2021-06-30 22:15:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4a142961cd0987c5195c3724fd4f5fe4 SHA-1: be76f77ed3302a1ee43e22974c66bb10a6d4d2b1 SHA-256: 9dab7676a016a09888cf96d7f07813d5ee6f3f8327da18eae79b804f4d5f3ab9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free Robux' and 'game hacks' to entice users. It contains multiple embedded URLs, with the primary one redirecting to a site promising game cheats. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the use of a game hack redirect lure. No scripts were extracted, but the document's structure and embedded links suggest it is designed to lead the user to a malicious download or phishing site.

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/binextreme-free-robux-pastebin-2021-game-hack PDF link annotation
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hack-for-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/make-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-cheat-in-hole-in-the-wall-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-las-vegas-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-into-someone-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robuxcom-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/rxgate-cf-free-robux-code_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/yt-roblox-parkour-you-can-free-runing-the-buy_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-phantom-forces-hack-unlock-all_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_off000030d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 22572 bytes
SHA-256: 6afd83d4e25baf70b8ffc7bee90c491d46396efa37e68b58a96281a239bd84e1
font_01_sfnt_off0000633d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633D 19756 bytes
SHA-256: 216555603135a268b0113bbcf1dfd2fb02c80fbb56ff0e5f8d0a29284d64bb95

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