Malicious PDF — malware analysis report

Static analysis result for SHA-256 57972f92ad4c521c…

MALICIOUS

PDF

40.1 KB Created: 2021-04-22 15:35:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1334775ede4d02b0a18e1b1289a08b44 SHA-1: b0f365ec88f8f27099eec512f66f4bed13c088d3 SHA-256: 57972f92ad4c521c00e5e6aa487d00f23b2e5be145e3579e855e063e4db37ab8
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a game hack generator, which is a common lure for malicious downloads or phishing. The ML classifier strongly supports the malicious nature of the file. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9926

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.
  • 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://netsecure.pro/app/431946152/hack-game-roblox-apk-game-hack PDF link annotation
    • http://fotoflas.gr/images/how-to-get-free-clothes-on-roblox-on-your-phone.pdfIn PDF document text
    • http://fotoflas.gr/images/roblox-lua-course-free.pdfIn PDF document text
    • http://fotoflas.gr/images/how-to-become-a-speed-hacker-on-roblox.pdfIn PDF document text
    • http://fotoflas.gr/images/https-pastebin-com-robux-hack.pdfIn PDF document text
    • http://fotoflas.gr/images/trolling-with-hacks-roblox.pdfIn PDF document text
    • http://fotoflas.gr/images/roblox-hack-one-app-rewards.pdfIn PDF document text
    • http://fotoflas.gr/images/free-items-roblox-2021.pdfIn PDF document text
    • http://fotoflas.gr/images/e-free-roblox-meaing.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
stream_003_off00003ecd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3ECD 26632 bytes
SHA-256: 65307270d77f45eca239e7a66ae9aaa061f858b1e3af58c2086b22283d906478
font_01_sfnt_off000079f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F0 18620 bytes
SHA-256: b8465a78231ec0dd2b7c2cf39f847564d68c3802037ae41c4dc65aa6149d517a

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