Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed6b65106815e66…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 12:57:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 85f74c7ea2c4a88bd61ce9edd4d27837 SHA-1: fe4b22e716b0dd7245b7e62bcb61e3d63dd796e9 SHA-256: 2ed6b65106815e664573d6b9b2cb7ba5be2f343c585ff7c92e69a23d87eb9ef6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free generators' for popular games. The document body and embedded links suggest a lure to trick users into visiting these sites, which likely host further malicious content or scams. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/roblox-hack-ios-game-hack In PDF document text
    • http://lib3tell.stptrisakti.net/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/robux-rewards_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/pokemon-go-free-revives_GM1094591345.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://robuxhaxs.comIn 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_off00004f31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F31 24796 bytes
SHA-256: 723672160f5c4c04116d61dcf2621db1de61755f04bea7e143b1870c0a5e7dda
font_01_sfnt_off00008852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8852 18184 bytes
SHA-256: f12c7157a0abee9a7103123c9d307fa47fe2494659220a603733cc764a4b7828

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