Malicious PDF — malware analysis report

Static analysis result for SHA-256 96301f05263aea50…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 09:29:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8e9d58297f0dbe1baf438db36c0e3b4 SHA-1: 92f6034eb0cd56df7cd409678d55f3ca52323dde SHA-256: 96301f05263aea500c620d6b5b24c3287d5bddd7b39e89c9540479441a1f9433
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, that lure users with promises of 'free Robux' or game hacks. The document body and heuristics indicate a social engineering tactic to drive traffic to potentially malicious sites. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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/431946152/free-robux-no-survey-or-human-verification-game-hack In PDF document text
    • https://admin.9credit.vn/data/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/stickmasterluke-100b-free-robux_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/how-to-get-the-hacker-egg-roblox_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/how-do-you-get-robux-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/hacks-for-roblox-deathrun_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-bloxburg-hack-money_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-speed-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/how-to-hack-into-roblox-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-g_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-account-free-password_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-lumber-tycoon-cheat-money_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_off00003157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3157 22780 bytes
SHA-256: 7c6793c6fb17b963223c2eee09e18f4f7b195141eba92910d92d248efebb7067
font_01_sfnt_off00006475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6475 19628 bytes
SHA-256: cdea958d27f31e1bb93a151c26d135a3dbedf9ed5520af1903eb9fa34a77bfdd

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