Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eccc60120a9710f…

MALICIOUS

PDF

33.3 KB Created: 2021-07-02 02:52:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7ec2901d659184e644301a5611c49427 SHA-1: a98b40c9a5aa91f74e621682f07c1d7180c95c67 SHA-256: 5eccc60120a9710fae73aab8920668ca556d75f9b07ab56596ee321790ae9fe7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free Robux and game hacks to entice users. It contains embedded links that redirect to malicious infrastructure, specifically http://netcdn.co/app/431946152/free-robux-giveaway-2-game-hack. The presence of these malicious links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or further stages of an attack. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam attempt.

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/431946152/free-robux-giveaway-2-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-system_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-item-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-no-inspect_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/building-hacks-for-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-someone-on-roblox-easy_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-cheats-for-jailbreak_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-gift-cards-not-used_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pubg-uc-no-verification_GM1330123889.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/fe-dll-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-do-you-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-someones-passwordin-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-redeemable-roblox-cards-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8D 21568 bytes
SHA-256: 93b5ecda6e07d66ed118d97b76834d7a8aa5867aca16e6b0af3acebdb94c9390
font_01_sfnt_off00005bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCA 19416 bytes
SHA-256: 6a32e10c055f075504de9ae29b950a07b7652233ef058d4b63f5398204dfe648

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