Malicious PDF — malware analysis report

Static analysis result for SHA-256 7246fabc50b5339f…

MALICIOUS

PDF

45.1 KB Created: 2021-06-10 14:16:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7751b6dec62ff93127080b0716b92157 SHA-1: 1053325845bc7eabc995ba030a51ef6e0c31b999 SHA-256: 7246fabc50b5339f609bc7a88dc521260387e1783193c602f5e29b965c120f49
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'Roblox Hack 2021' and includes a high-confidence heuristic firing for a game hack redirector. The primary URL identified, https://netcdn.tw/app/431946152/roblox-hack-2021-john-doe-game-hack, is likely used to deliver a malicious payload or redirect the user to a phishing site. No scripts were extracted from this sample, but the embedded URL and the nature of the lure strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/roblox-hack-2021-john-doe-game-hack PDF link annotation
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-from-apps_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/hacker-roblox-fr_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-codes-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-leaked-games-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/onnet-roblox-hack_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-offer-website_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/spero-roblox-hack_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-builders-club-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-play-for-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/is-there-a-free-coding-platform-for-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-robux-100-legit_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/hacking-roblox-people_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/linoria-hub-roblox-free_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-galaxy-arcade-resourcen-cheats_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/broken-bones-4-hack-roblox_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
stream_004_off00005110.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5110 25524 bytes
SHA-256: 9d5dad2ea8348c76f963a7c1c4dd146c14fd19ca3af863e70dd6842ad0348091
font_01_sfnt_off00008b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B31 19084 bytes
SHA-256: d620d909b8aff9b9bea4930189687a8172d16f8f958c8ecf29564d6d6f01f941

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