Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bcafa5489d72524…

MALICIOUS

PDF

45.9 KB Created: 2021-05-17 21:02:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f4e03d4f5fbee8168ed7428c64364152 SHA-1: e23c860e114253cb4c98768efb3d93952b01646f SHA-256: 5bcafa5489d725249ae0d72a8232a67582f686ba0f90afc50d88c6c0eb946bba
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 'game hacks' and 'free generators'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-apk-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to trick users into downloading potentially unwanted or malicious software, aligning with a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/roblox-apk-hack-game-hack In PDF document text
    • http://www.ideastreet.it/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/free-coin-master-s_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/daily-spin_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://www.ideastreet.it/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49BC 27572 bytes
SHA-256: 6be1fd51631bac2ae25a68661c4498cae90e35a7b697e0c990b604c87f63526d
font_01_sfnt_off0000869a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869A 2852 bytes
SHA-256: e9630f3bb738ae3bc329a423cf069c8035d70ce2227e3557c42815f85ad3284f
font_02_sfnt_off0000905b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x905B 18356 bytes
SHA-256: 7e836b6261bebb63fda2bc6c603fa398fe0a548bc6334e21915c3f4956160db8

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