Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b0ad024827bacb…

MALICIOUS

PDF

49.9 KB Created: 2021-06-09 04:57:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c5514f06f9b8f88ebf0d2032e76e45e SHA-1: a263fca8d67fe2073be18117b3efbc84084dc562 SHA-256: e0b0ad024827bacbfc93aabe41f0c1e7e96ccf9624c6a90d7b61bd96e19786ab
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 'free generators' and 'game hacks' for popular games like Roblox. The heuristic firings indicate that these links are known malicious redirectors. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9768

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.tw/app/431946152/how-to-hack-roblox-free-robux-game-hack In PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/hack-jailbreak-2021-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/robux-script-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-gear-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-free-robux-no-clickbait-2021-add_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51DD 28548 bytes
SHA-256: e3904429415a21569570eea80a06a3e557e1700ad91b645637e1b07b407e687c
font_01_sfnt_off000093c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93C3 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAE 19164 bytes
SHA-256: ee30cc748b4e9aafef486aa1904199ad1633a2588771e8b79f113fe7c46a9048

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