Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a67318bdf91276…

MALICIOUS

PDF

49.5 KB Created: 2020-07-29 16:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f9f0638d43ea99e612ed83f3087788c SHA-1: 3285f78ca9809751c037b95acafb291b35cac7d3 SHA-256: 60a67318bdf91276408d1c368e582c684bebcc2cc507211f87ffbc65f19ac8d7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Afcat 2 result pdf'. The presence of many external PDF links indicates an attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=afcat+2+result+pdf
    • http://files.edmondpiano.co.uk/uploads/1/3/1/8/131871477/zujor_tunik_tevugabexile_vumokapo.pdf
    • http://files.villagepottersguild.org/uploads/1/3/1/0/131070904/nadimaxubawene.pdf
    • http://files.erinocarroll.com/uploads/1/3/1/6/131607010/duluradoganebiges.pdf
    • http://files.ingallsplanning.com/uploads/1/3/0/7/130739202/9559813.pdf
    • http://files.surfcoastsecondarycollege.vic.edu.au/uploads/1/3/2/6/132696016/2179455.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/77275404831.pdf
    • https://cdn.shopify.com/s/files/1/0427/6027/4087/files/2308126063.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/nojubotevureleveg.pdf
    • https://cdn.shopify.com/s/files/1/0428/3524/7271/files/70889879960.pdf
    • https://cdn.shopify.com/s/files/1/0428/9114/9475/files/dorisusudote.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/toraladomokipina.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/jarelu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/27756317037.pdf
    • https://cdn.shopify.com/s/files/1/0431/2806/2103/files/mumuwasatezixujevitit.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/wosigupeluwun.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/lulamaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevimija.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085e3.bin
8f43e854aceac1b042ff75a7df6421bf578d1cb7808ce163a7ed4f1ba89cf6a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85E3 4888 bytes
font_01_sfnt_off00009694.bin
e4f49d0b34d81d6d18a0e5236fa3a07f7a83001d9d642e2b7b3f6b2c32e6e0ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9694 9984 bytes

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