Malicious PDF — malware analysis report

Static analysis result for SHA-256 accc3e152c26ea35…

MALICIOUS

PDF

34.7 KB Created: 2021-06-17 23:01:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 854a3a9d9f0758c5f9b56a67c6f451fb SHA-1: aa5a70a4806b511720ae5962912e7eb677c65c4b SHA-256: accc3e152c26ea350be69bfd13d0701d669d5a73bf93df6b8474d7a53fa30d42
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as a 'free Robux generator' or 'game hack'. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting malicious websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/hoe-to-het-free-robux-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-g_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-robux-hack-tool-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/como-conseguir-robux-gratis-sin-hacks-con-dos-links_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-noclip-hack-no-download_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hacking-website_GM431946152.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_002_off00002ea3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EA3 23576 bytes
SHA-256: 2f7178bc62f18bdf3afac20ed0cb553180f093bdfea00b2c747f736c8e2b4a6b
font_01_sfnt_off000063ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CE 18636 bytes
SHA-256: c1baf403e8cb46c864d2026ec82a4f1f8302c58347c0155201b0c26f63a68c3f

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