Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb2063a08efe359…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 08:24:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c57f4d69992a765f66589162388868a0 SHA-1: 46ce15b28d81f9e856ea39079e56cc868b544514 SHA-256: 9cb2063a08efe3590fed75696ac505911be59a5e06362b2c45b2410323bef55f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious domain, masquerading as a game hack or generator. The heuristic firings confirm the presence of malicious redirector links and a lure for free game hacks. Although no scripts were extracted, the document's structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at redirecting users to malicious content.

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/avatar-roblox-game-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-the-er-face-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-roblox-hacks-on-mac_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-booga-booga-mojo-hack_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-make-a-hacking-game-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pubg-uc-image_GM1330123889.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/april-1-2021-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/cool-free-roblox-characters-uu_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/crack-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/mapa-de-free-fire-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-for-no-money_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-dolphin-hacks_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-red-boy-hack-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/royl-high-roblox-play-roblx-for-free_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-apk-mod_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/redeem-hack-roblox-2021-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-app-that-sends-code-to-your-email_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_off00002f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F62 21900 bytes
SHA-256: dbaf2ee41c6eeed9cde19ffa1d7e6e95b1a712d1128a264c455e39f6ed66cb21
font_01_sfnt_off00005f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7F 18964 bytes
SHA-256: 1379943476da574a4dab6a8d7032cbe9a71a66405b07e4af99d26083a0ac37fd

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