PDF static analysis report

Static analysis result for SHA-256 4a7a5d75337c67c9…

SUSPICIOUS

PDF

35.4 KB Created: 2021-06-26 07:14:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5befcce773b24481c6ceb0ef8e75b81d SHA-1: 51140b67d97cd92d37c672f79cea6198920c437e SHA-256: 4a7a5d75337c67c97720114b8b447ebb0b1177186506fc0b8810ade03ad05ccf
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links and references to free in-game currency for popular games, acting as a lure for users to download potentially malicious content. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a download or redirection attempt. Although no scripts were explicitly extracted, the document's structure and embedded URLs point towards a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.co/app/431946152/growtrooperz-free-robux-game-hack PDF link annotation
    • http://www.riverkennet.org/uploads/files/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/javascript-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/spin-link_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/how-to-get-free-pubg-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/roblox-ho-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/roblox-fashion-frenzy-games-free_GM431946152.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://www.riverkennet.org/uploads/files/files/free-400-spins-coin-master_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
font_00_sfnt_off00003163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3163 22732 bytes
SHA-256: e925e7022772837b94d8c60a993d59f3f9f6573496858f2767e8324ff9a8f069
font_01_sfnt_off00006493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6493 19244 bytes
SHA-256: 229b7148948e3e0e3a1d5f5c3452c662939883fada1f2f679307a25ac4656554