Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b95af4546743be…

MALICIOUS

PDF

45.6 KB Created: 2021-06-11 12:25:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: cda7f287f438a9206396077bc394bb68 SHA-1: 34021de87df5370cdfff28242c529d31fd1b6cb1 SHA-256: 30b95af4546743beeac6766c917c7e5d9aac8484e8e3bb1e9a01f8eb8bd53c22
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is a link to 'roblox-wizard-life-galleons-hacks-game-hack'. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack designed to lead users to potentially harmful content or further malware downloads. The presence of numerous similar URLs across various game-related topics reinforces the phishing nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/roblox-wizard-life-galleons-hacks-game-hack In PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-hacker-com_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/cheat-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-8-robux-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-play-roblox-on-macbook-pro-itunes-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-code-lua-roblox-hacking_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/robux-today_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-highschool-hack-script-oder_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/make-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-spins-hacktman_GM406889139.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
stream_004_off0000530d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x530D 25668 bytes
SHA-256: 88a1be3e9c55414209bc7b890748a0ad10ec3047c490c9177c336d411ef66581
font_01_sfnt_off00008e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E3C 18756 bytes
SHA-256: e501adbcd55d737da177b565eef7d0da8b46b7661124f9f62ba9ebd1dd912b5e

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