Malicious PDF — malware analysis report

Static analysis result for SHA-256 265bd41029dbbc86…

MALICIOUS

PDF

46.4 KB Created: 2021-06-10 13:42:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7698b39c0a20592205c6fce60372dd68 SHA-1: 67b472321d16018ad1b1680f6e48e70c24938929 SHA-256: 265bd41029dbbc865b492892547e9197dd0498bee89e7921b1960939117f89bf
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/479516143/minecraft-pe-0.15-0-apk-free-download-game-hack PDF link annotation
    • https://slims.bakrie.ac.id/textbook/repository/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/lazyblocks-com-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-free-cards-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/mc-update_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/is-roblox-on-xbox-one-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/get-free-robux-now_GM431946152.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
stream_004_off00005414.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5414 27300 bytes
SHA-256: 48b45e6373ea11345ec80172e8a82c687bc95c7ef47c052111b803493736b405
font_01_sfnt_off00008fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE1 19268 bytes
SHA-256: 9273c8c2b8a269721a9438858e1c0aeb95c142b4551f9d4ca11e724d76d79d6e

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