Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9f3d0b35440e2b…

MALICIOUS

PDF

33.0 KB Created: 2021-07-01 13:22:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7aadc02942fe78d7d82c5278bf4891e1 SHA-1: f697874a407be093d2f5cb21786fd7f33cad6de6 SHA-256: fd9f3d0b35440e2b22ef32200fef2622a62c283f876cfaa2464b769a5b2563aa
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, presented as a lure for game hacks, which is a common tactic for distributing malware. The heuristic firings indicate a high likelihood of malicious intent, specifically a link farm designed to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/roblox-the-conquerors-3-hack-game-hack PDF link annotation
    • https://fib.ub.ac.id/sac/repository/hacks-for-roblox-sript-reader_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-sad-cheating-story-albert-he-cried-on-video_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/hacks-para-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hack-pc_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-admin-roblox-game_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/pokemon-go-free-download-for-pc_GM1094591345.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/hack-roblox-in-ipad_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/buy-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/can-you-get-minecraft-windows-10-for-free_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_off00002aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA0 22084 bytes
SHA-256: fb97246cf80258a445eac008b63a3ccc611339785fd303a33bfa169e03795bf4
font_01_sfnt_off00005b89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B89 19308 bytes
SHA-256: f96cef66532bd726e7ffb5c5a50c92fbcd34fbce4545aadcae61e1e5132e7727

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