Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf5fab2793dc9c5…

MALICIOUS

PDF

34.0 KB Created: 2021-07-09 21:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 32f293e372d9797aea8864929b19365a SHA-1: e64187ab3ebde3a6dbb60a83ba2d904a1a3e0b02 SHA-256: daf5fab2793dc9c5849c7234670f45584038998d7f67755f95da21ead79a67f2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as offers for game hacks and free downloads. The primary URL, http://netcdn.tw/app/479516143/minecraft-free-download-mobile-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering lure to trick users into visiting these sites, likely to download further malware or engage in scams. 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.tw/app/479516143/minecraft-free-download-mobile-game-hack In PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/roblox-shoes-free_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/wizard-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-speed-hack-on-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/hacks-para-roblox-para-conseguir-robux_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elr.manubaba.com/__statics/gudangsoal/files/roblox-got-talent-piano-hack_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
font_00_sfnt_off0000309a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309A 21884 bytes
SHA-256: 289b1fdc987414ded4d7d36aee1305da20f6892e0b0fbf6bda2336ad48d9fb81
font_01_sfnt_off000060d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 18736 bytes
SHA-256: b6e051f0b4e02b7356fd7079c0d6036a663a9338c3288034fa352d97dcc0d1e4

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