Malicious PDF — malware analysis report

Static analysis result for SHA-256 54749300dbf702e8…

MALICIOUS

PDF

33.4 KB Created: 2021-06-30 14:26:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d04001739e83a8815a3adf926235ea59 SHA-1: 03a86db818b51056bbba82476a98637ff684f05d SHA-256: 54749300dbf702e8d3837216014af07c590fd18694e8cb8a6854dfc642164b6e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that lead to malicious redirectors, specifically promoting 'game hacks' and 'robux generators'. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-the-legendary-swords-2-rpg-roblox-game-hack, which is part of a network of malicious redirectors identified by heuristics. The document body, though partially corrupted, contains similar lure text and URLs, reinforcing the social engineering aspect.

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/how-to-hack-the-legendary-swords-2-rpg-roblox-game-hack In PDF document text
    • http://fishboat.hr/files/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/getrobux-come_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/i-robux_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/free-game-pass-all-roblox_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/glitch-hacks-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-top-free-robux_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fishboat.hr/files/girl-clothes-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00002bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB4 21724 bytes
SHA-256: 65232363f27d271258cdfb9ff10b01f167fd065aa2802976a54c52330de29e15
font_01_sfnt_off00005b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9B 19640 bytes
SHA-256: e434ac39dbbafe980a67a2053db68d1244fe40bf5ba92309c36ecdae3f4f6ca8

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