Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0e2c3e4d6108601…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 05:07:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72b4386c4ebe671ed7ff9ba88ff9767a SHA-1: d9fcbf1b70bffd9ffeba8491b1b435fdd67cd67f SHA-256: a0e2c3e4d6108601bdbe2ce03f89eb588e06921068f6de7f8bd58671995d1e3b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is malicious, specifically linking to a known malicious redirector. The document body and embedded URLs promote 'free generator / game hack' lures, aiming to trick users into visiting the malicious URL. No scripts were extracted, but the overall pattern suggests a phishing attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.online/app/431946152/how-to-get-free-robux-on-roblox-2021-game-hack In PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/pubg-uc-free-in-pakistan_GM1330123889.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3Edenisdaily%20robux%20hack%3Cp%3E%3Cp%3Ehow%20can%20i%20get%20roblox%20for%20free%3Cp%3E%3Cp%3Eroblox%20free%20robux%20generator%20download%3Cp%3E%3Cp%3EThere%20are%20in%20fact%20quit%20a%20few%20websites%20which%20prompt%20this%20In%20these%20Apps%20you%20will%20have%20to%20try%20out%20applications,%20play%20games,%20fill%20out%20surveys,%20and%20do%20other%20things%20for%20which%20you%20will%20be%20paid%20for%20in%20literal%20pennies.%20Related%20search%20:%20Claim.Gg%20Free%20Robux%20App%20How%20To%20Claim%20Robux%20From%20Sales%20Claim%20Free%20Robux%20No%20Password%20Free%20Robux%20Gen%E2%80%A6%203:50.%3Cp%3E%3Cp%3Einfinite%20health%20roblox%20hack%3Cp%3E%3Cp%3Erobux%20hack%20pc%3Cp%3E%3Cp%3Efree%20robux%20obby%20by%20roblox%3Cp%3E%3Cp%3Eroblox%20jailbreak%20dll%20hack%3Cp%3E%3Cp%3ERoblox%20Hack%20-%20Generate%20Unlimited%20Robux%20directly%20from%20your%20browser,%20undetected!%20Even%20a%20person%20with%20no%20computer%20knowledge%20can%20easily%20connect%20and%20use%20this%20tool%20to%20get%20tons%20of%20free%20Robux.%20If%20you%20are%20an%20ardent%20fan%20of%20Roblox,%20you%20will%20know%20exactly%20what%20features%20you%20so%20much%20desire%20while%20playing%20the...%3Cp%3E%3Cp%3Eroblox%20how%20to%20get%20obc%20for%20free%20lifetime%3Cp%3E%3Cp%3EHOW%20TO%20GET%20ANY%20DOMINUS%20FREE%20IN%20ROBLOX%20EASY%20In 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_off00005082.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5082 24796 bytes
SHA-256: 944f497c442cd35fbe9f226cce75bf7e50518297aa66929868d96d0ae94c5e94
font_01_sfnt_off0000893c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893C 18152 bytes
SHA-256: 3042cbce8723cff4677a9adf71bc11fc907d3807d0239078f691b18c7a02dff9

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