Malicious PDF — malware analysis report

Static analysis result for SHA-256 de625741e9e7e725…

MALICIOUS

PDF

38.4 KB Created: 2021-07-02 01:49:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c83e1d3d8244b1a68e057671f853f9e SHA-1: 79becbfb4009859830a4648f80b36d88c7546fc8 SHA-256: de625741e9e7e725db5ee60669651b2f484232e04d427dd68e7ba457c43f9abc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure, likely to facilitate a scam or malware download. The document body and embedded links suggest a lure related to game hacks and free currency, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/robux-gratis-hack-paginas-game-hack In PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/cheat-roblox-mod-de-passe_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-bee-swarm-simulator-tabby-bee-cheat_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-tycoon-money-cheat_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/future-hack-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hacke-promo_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/carte-de-roblox-hack-gratuit_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-download-no-survey_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-para-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-hack-into-peoples-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-100-works-no-human-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-back-hacked-roblox-account_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-money-mad-city-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-hack-r_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-for-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-too-hack-a-roblox-account_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.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
font_00_sfnt_off00003e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E60 22668 bytes
SHA-256: 1318c8f251dd1a3300b5d256fc5cc0cfbcecf8b2cb644be02b2237916d048c67
font_01_sfnt_off0000712c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x712C 19100 bytes
SHA-256: 94f5549308f949a85b3f137c79456a063729624254218ef18c1eae8e37e0fee0

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