Malicious PDF — malware analysis report

Static analysis result for SHA-256 502e5449baa1989f…

MALICIOUS

PDF

38.3 KB Created: 2021-07-07 14:49:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 7283364220a18f16235f4c81e52e1dbe SHA-1: 650f21c70bd9e78790619272352ffd1bd6065df2 SHA-256: 502e5449baa1989f4b66e7a935a65136d4fc9b8ef77ff332d04517d788d49712
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links designed to lure users to external sites, including a known malicious redirector at http://netcdn.tw/app/406889139/coin-master-game-hacking-tricks-game-hack. The document body and embedded links suggest a scam related to game hacks and free in-game currency, likely intended to lead users to phishing or malware download pages. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9899

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-game-hacking-tricks-game-hack In PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/free-robux-kids-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-do-you-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/robux-free-no-survey-or-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-free-robux-218_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-purchase-robux-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-robux-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/descargar-roblox-hack-2391_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-tibetan-mastiff-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/roblox-free-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-free-robux-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-get-free-robux-in-two-minutes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stiq-amuntai.ac.id/repository/how-to-hack-roblox-pokemon-universe_GM431946152.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_off00003633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3633 22772 bytes
SHA-256: a3ff390292b6956fffb6edf920dfe89308139dc48bac90f97b3a9baaba6a8ad6
font_01_sfnt_off0000692e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692E 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00007313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7313 18264 bytes
SHA-256: 4c5f3e5f965961006c3ef101f0d270ac3d1ae38296427d466ad59c3e8bba8268

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