Malicious PDF — malware analysis report

Static analysis result for SHA-256 10902c69dd51466b…

MALICIOUS

PDF

36.0 KB Created: 2021-06-30 00:28:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bec9df9ce754b4a96ebfc41e97bbbfe SHA-1: 7e20616b3952cdebc223574e267c16c4874ea144 SHA-256: 10902c69dd51466bb5708394e089aea4107d2419dbf96e30e0319690f3f1132d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, specifically http://netcdn.co/app/431946152/how-to-get-free-robux-codes-that-work-game-hack. This redirector is likely part of a phishing or scam campaign, using lures related to free Robux and game hacks to entice users. The ML classifier also strongly indicated maliciousness.

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/how-to-get-free-robux-codes-that-work-game-hack In PDF document text
    • https://library.fdk.ac.id/repository/roblox-jailbreak-money-hack-july-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-roblox-font-download_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/cheat-roblox-freedraw_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/hacker-un-compte-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/impact-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-august-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/hiw-to-get-free-robux-on-roblox-2021-fast_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-hack-generator-download_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/codes-to-enter-for-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-groups_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-you-get-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/rbl-gg-free-robux_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_off00003285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3285 23112 bytes
SHA-256: 5e9be64f57867cfe7376e8a2fe46bca0a2a97e289c74e9ecee59f98f175e7bae
font_01_sfnt_off000065f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F7 19692 bytes
SHA-256: cefa7df4a0ea7f258b5047a5f9890eb665c01b236239740d1a574672785833e6

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