Malicious PDF — malware analysis report

Static analysis result for SHA-256 846201667aa177fe…

MALICIOUS

PDF

34.8 KB Created: 2021-06-23 10:15:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 47fea978383ee649c4eda7571732df18 SHA-1: 5a78947390f0e4c12c87c186293b0ee1a61a9f9d SHA-256: 846201667aa177fe5105e038d1192aaa28a58f609a19b34d07529fc14d20ff35
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF files advertising game hacks and cheats. The ML classifier and the presence of a link farm heuristic strongly indicate malicious intent, likely to trick users into downloading malware or visiting malicious sites. The document body and extracted URLs suggest a phishing or scam attempt related to game exploits.

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.co/app/431946152/boosted-gamer-roblox-hack-game-hack PDF link annotation
    • http://perpus.fisip.unnur.ac.id/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/online-games-like-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/real-robux-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-accounts-on-roblox-discord_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/honey-hack-roblox-bee-swarm_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/hack-como-tener-robux-gratis-en-menos-de-10-minutos_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/1million-free-badges-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-robux-video-no-password_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-robux-cheat-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-4-robux_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-get-free-unlimited-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-roblox-clothes-template_GM431946152.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_off00002f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F81 22692 bytes
SHA-256: 8b478bb37ffdf449b6c72773447ab8c287001d0327951da96f62f0a15442588b
font_01_sfnt_off00006288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6288 19192 bytes
SHA-256: 57754972e8202c888323ac71688a3b1e83bde5a4f6b39c6d1b244a4cb7dc9cd1

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