Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2a766d78790f84…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 05:57:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ac75dd197f244e5dda14f6d5bc16d9fd SHA-1: 50d440d10c981401b2d1f40adc4e71f0826e697f SHA-256: 8d2a766d78790f846ff0c8e5d325a77f50d150d488d9801cf9bba2673171adad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a high-confidence heuristic identifying a lure for game hacks. The primary URL, http://netcdn.co/app/431946152/roblox-infinite-life-hack-game-hack, is presented as a 'free generator / game hack'. While no scripts were extracted, the document's structure and embedded links strongly suggest a social engineering tactic to redirect users to a malicious site, likely for malware distribution or phishing.

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/roblox-infinite-life-hack-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/pokemon-go-free-and-switch-connect_GM1094591345.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-codes-june-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/redline-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-codes-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cheat-speed-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-superhero-body-in-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-use-cheat-engine-on-roblox-mac_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-copying-and-pasting-easy_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/flip-master-coins-hack_GM406889139.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_off0000301f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301F 22724 bytes
SHA-256: 579011a378b7e14bf9db5f31c435e9d6a7156b23c41716190b9b7c170dbbf093
font_01_sfnt_off000062dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DD 18880 bytes
SHA-256: c4948b9399e63b8f351541c50c66db472f3ca0f3aebb571676561e649f6d06e1

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