Malicious PDF — malware analysis report

Static analysis result for SHA-256 3301b8c9d3a21208…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 08:04:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 71ef6007d2a888bd90c6216fb29b3833 SHA-1: 930e4a4c527d41e3f319ee7afbb932b0f59cfa5c SHA-256: 3301b8c9d3a2120852aed0d7455e11ea1287f9f7b97bc9fcd655fd69e99e2f2e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure is a link to 'how-to-get-more-robux-game-hack', which is hosted on a known malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites, likely to download further malware or compromise their accounts. 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/431946152/how-to-get-more-robux-game-hack In PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-outfits-on-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-robux-addons_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-shaggy-old-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-car-glitch-in-roblox-vehicle-sim_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-lifetime-obc-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/get-free-roblox-hats-not-patched-working-2021_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_off000031d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D7 22812 bytes
SHA-256: bad8ae112cfedec2b44bd113ec12d0fb21c48563b8e320eb5ee46cf0aad8fe1a
font_01_sfnt_off00006515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6515 19016 bytes
SHA-256: 6aa127ff16da2a4872f87fb8bac29a815e7536eb149385d076fe202f8a47623a

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