Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58d97676a79bd15…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 23:25:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f1d2d8fb60692ff39efbf3bba0ef52ed SHA-1: d5fa5bb94bb4f5bb5551bcda4fca39d0a8bbd6aa SHA-256: d58d97676a79bd152ec0e407dddd7b6be4ff3b3f6bc74493585c5704a2316a45
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to trick users into clicking embedded links. The primary link, http://netcdn.co/app/406889139/www-coin-master-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for JavaScript execution or redirection to a malicious site designed to deliver a payload or phish for credentials.

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/406889139/www-coin-master-game-hack In PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-executor-download-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/hack-fhantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021-on-ios_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/is-it-possible-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/roblox-hack-no-verify_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/buy-tiktok-likes-free_GM835599320.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.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_off00003247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3247 22660 bytes
SHA-256: 1ddf35a8b7af41356940a6a3d29ebd996f3bdcc74bc448c1e6a3c3959a559d56
font_01_sfnt_off000064f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F9 18196 bytes
SHA-256: 333f0b57c489d8d6b1bb73d529d6ed6b87f332327f9dda85c3e6bdc5eefbc894

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