Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2a3899119182396…

MALICIOUS

PDF

43.5 KB Created: 2021-04-25 23:20:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 05da7738ecdd2808fa17ab16ba63e9e6 SHA-1: 6513f92b7c1f49c00cd659d764b554c5329b366d SHA-256: d2a3899119182396562ec00edecda39f37d01777db5e8f82920c5b8b5f9af117
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a known malicious domain, masquerading as a 'game hack' generator. The document body and heuristic firings indicate a lure using urgency and a call-to-action button to entice users to click the malicious link. While no scripts were explicitly extracted, the PDF structure and malicious links suggest an attempt to lead the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9868

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://netcdn.xyz/app/431946152/robloc-robux-hack-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/como-descargar-roblox-hackeado-para-android-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-griffin-code-roblox-adopt.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-do-you-get-free-robux-easy-way.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/rosie-hacks-caillous-roblox-account.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-face-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-dragon-ball-z-final-stand-zeni-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-restaurant-tycoon-money-cheat-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-sword-that-work-in-roblox-games.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-download-tool.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacking-roblox-account-script.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4397 24416 bytes
SHA-256: 5f744dba5556ffeda78211c8fe9f20e2b4c81eecba3f1c478986b22b4d874c5a
font_01_sfnt_off00007b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2D 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000087d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D5 18320 bytes
SHA-256: e130f7237510ce9205a0a1c9dfcdd99c6657d91b7d0051c220dc5458b05fccdd

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