Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c479803756b515…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 08:40:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ac0a9a1724c9e6fd935918dfce00a7d9 SHA-1: 7cd8de0b9ff4ecba55834acafc0612fc2be92ed3 SHA-256: 17c479803756b51547ba2505e81af2e7b55f4b762f40375091c047cf47364641
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a large number of embedded links, many of which point to domains associated with game-related scams. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'download button' heuristic suggests a lure to trick users into clicking these links. The primary intent appears to be directing users to potentially malicious websites for financial gain or further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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
  • 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.tw/app/431946152/roblox-free-robux-codes-game-hack PDF link annotation
    • http://falconshipping-uae.com/userfiles/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-roblox-tshirts_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-links-for-free-spins_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-put-music-into-any-roblox-game-hacks_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-naruto-final-bond-cheat-level-up_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000300e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300E 22532 bytes
SHA-256: 68e86c970b1a16583cdcfa4e303f5c1b5beb937b0d25f95d9dc841ba9b268537
font_01_sfnt_off0000627c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627C 18964 bytes
SHA-256: a55805342354896b15de53c372ce6b4f67675692ecef428388acdddaf3dfd905

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