Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25c586fe7f6e017…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 17:26:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 1e971c047fbcd0fa3f21e8af69629034 SHA-1: 44ef32055bee2600d5ae2586e4ca858f42acfa9d SHA-256: d25c586fe7f6e017562a7845b47bd8245495dd658ee739035175a993cf89318a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that lead to a known malicious redirector, specifically http://netcdn.tw/app/431946152/how-you-get-free-robux-game-hack. The document body and heuristics indicate a lure for game-related cheats or currency, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of malicious links and the lure strongly indicate a malicious intent to redirect users to potentially harmful 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/how-you-get-free-robux-game-hack In PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/daily-spin_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/v3rmillion-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-buy-stuff-with-no-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-make-hot-sauce-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/xbox-roblox-free-items_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/lots-of-robux_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-hack-your-friends-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/roblox-admin-commands-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning11.man1kotalubuklinggau.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-2021_GM479516143.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_off00003162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3162 22072 bytes
SHA-256: 268d4e21ec21d927a119a98f2806630e1379ff972cdb8228d846254d1b7ce19e
font_01_sfnt_off00006243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6243 19144 bytes
SHA-256: 347a02abbc70d9a51f290361347438ae6cbd927e0a0fbf4b37ccbc96466cb725

Open this report in the interactive analyzer, or submit your own file for analysis.