Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe9245a89aee8d8…

MALICIOUS

PDF

50.1 KB Created: 2021-06-03 12:01:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 634c2ca7012b7be59d6a8bca8c052d47 SHA-1: 2a4ae903b32a505cdd676195eacc832145179e74 SHA-256: afe9245a89aee8d87f3e649c86799d4085ca2deb1f89b536c52395a985918a25
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which appear to be SEO-optimized lures for game-related cheats or hacks. The presence of a direct link to 'netcdn.online' and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a gateway to further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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 https://netcdn.online/app/406889139/coin-master-online-hack-link-game-hack
    • https://digilib.widyagamahusada.ac.id/repository/need-free-spins-for-coin-master_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-daily-spin-link-app_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-spins-coin-master-haktuts_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/hack-client_GM479516143.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-do-you-download-minecraft-for-free_GM479516143.pdf
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-mac-free_GM479516143.pdf
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-coin-spin-daily-link-net_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-spins-coin-master-links-app_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/is-free-robux-real_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/ways-to-get-free-robux_GM431946152.pdf
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spins-2021-today_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-spins-coin-master-2021-today_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdf
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-hacks_GM479516143.pdf
    • https://digilib.widyagamahusada.ac.id/repository/can-i-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005693.bin
ec47cba1b405c1dbfd34308c3d4e8d0d9acf694fea187affda3e9113c35ce6d5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5693 28900 bytes
font_01_sfnt_off0000990c.bin
869414959d7b492e0f799b560e1731e3ab498bd286c28e9f0d2ec33d9b6cf53d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x990C 2812 bytes
font_02_sfnt_off0000a2aa.bin
dd7a4057587595e78019333ccc667320d6d804c022730983449509c018bf4689		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2AA 17788 bytes

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