Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a89e17f6cd61e0…

MALICIOUS

PDF

41.2 KB Created: 2021-04-24 20:30:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5bceb2c741a13639d28214ff72804387 SHA-1: dc0c9b1b0485445600ed76d6d0b33ecc7c12b37e SHA-256: 17a89e17f6cd61e08ad101677eb9438a29bd1578047e149efd954af5a5127617
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting a "free generator / game hack" for Robux. The heuristic firings indicate that these links are associated with known malicious redirectors and game hack lures. While no scripts were explicitly extracted, the nature of the embedded links and the lure suggest an attempt to redirect users to a site that may host further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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 https://netcdn.xyz/app/431946152/karinsupersweet-offers-200-000-robux-for-free-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/redeem-roblox-card-codes-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-god-hack-on-roblox-with-cheat-engine-64.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-generator-codeorg-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-online-no-sign-up-or-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-jefftec.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-roblox-espaol-elements.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/speed-hack-roblox-script-pastebin.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/oomg-how-to-hack-jeailbreak-on-roblox-with-proof.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-do-you-get-free-robux-in-roblox-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/descargar-roblox-hackeado-con-robux.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_off00004145.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4145 26076 bytes
SHA-256: fa0de102c8a1dd427c24ebbd5304dda58b0a090dea7f8bdf506e6d3d293c2dae
font_01_sfnt_off00007c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7D 19104 bytes
SHA-256: aece14347ae712ebe26d156e26e0ecaf33647a608a4cad31019a15d8b2b21149