Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6c888cd41a7426e…

MALICIOUS

PDF

45.5 KB Created: 2020-08-17 05:31:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3b75a30dcf39029c54400709abd8269c SHA-1: 2e6d25b597ed0faa6c4cf88c6f97760ae2621bb9 SHA-256: f6c888cd41a7426e8769263882a91f6f0ec1b1aca7d904e4ee9cab9b5b2ab34d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=codeware+compress+software+free In PDF document text
    • http://files.gibtech.net/uploads/1/3/1/6/131606118/mumidilawonubax.pdfIn PDF document text
    • http://movomas.basketballhelp.net/uploads/1/3/0/8/130814397/taniwi.pdfIn PDF document text
    • http://files.mbmhn.org/uploads/1/3/0/7/130739570/rawiporapofam.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7964/7903/files/vipafisudiware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0411/6637/files/42531079007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9760/2713/files/89625313783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/semexipuzifemebagiliforom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3463/0554/files/biology_in_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/50518189161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2322/files/61060837408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4577/files/hipoglucemiantes_orales_ada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9604/7783/files/sizogibosekig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/pitik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2254/0185/files/54682805614.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B7C 1660 bytes
SHA-256: bd166d64c4ac8954e2933e6e483f73d556bfd5753cccffed8791ed292fde615a
font_01_sfnt_off000053be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53BE 5268 bytes
SHA-256: 0c31f9820542af988246e6056821eed954ca77803b87da9a543803dc206043bd
font_02_sfnt_off000065a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A3 12708 bytes
SHA-256: 582484850784d5bac45409f3514deecf401bd90ad404d6ae644c22f2ab2c7a3b
font_03_sfnt_off00008f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1A 16760 bytes
SHA-256: 63466f7a2fcc6abc43d91bb2b6ca6e49ebcdd1acb3f2cfffa146b3d9432f5f7f

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