Malicious PDF — malware analysis report

Static analysis result for SHA-256 b12f4a2664c7867d…

MALICIOUS

PDF

42.9 KB Created: 2021-05-20 01:43:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4d233c81d0befc00a260f34df39405d SHA-1: 7a729e00053e9e2ad8123d07242436ecc7f5ca36 SHA-256: b12f4a2664c7867d106dfb9053593457f03d45c745df7d3fe2099944a3723cdf
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1071.001 Web Protocols

This PDF document employs a lure related to game hacks and free generators, impersonating the Apple brand to entice users. It contains multiple links that redirect to malicious infrastructure, specifically `https://netcdn.xyz/app/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack`, which is identified as a malicious redirector. The document's structure and embedded links suggest an attempt to lead users to phishing sites or download malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack.
  • 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/479516143/how-to-hack-a-minecraft-server-and-make-yourself-op-game-hack In PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/spin-coin_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://www.youtIn 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_off00004b74.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B74 24976 bytes
SHA-256: 53a56a5d174417665c0e17af4ebd8930f58340ec80f2c9d10ee47726a75d21a8
font_01_sfnt_off000083aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AA 18884 bytes
SHA-256: c6c75348c8512da505ae943a266b7446b2e14ebdee3fe9748eb8d749779a3ee4