Malicious PDF — malware analysis report

Static analysis result for SHA-256 8daf48061f04ed09…

MALICIOUS

PDF

35.8 KB Created: 2020-08-18 14:20:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 033d5f33a7b6046c03573dc8729aa318 SHA-1: 78d8077ca66dc3408984d1a22e0697ce72d080af SHA-256: 8daf48061f04ed094cfcdff97fb900a8ab7c51b5aa48dc105bc71e46a53f3cb6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL, https://ttraff.com/pify?keyword=bollywood+new+movie+song+mp4+free, is designed to lure users with a seemingly relevant keyword. The presence of numerous other PDF links, many hosted on Shopify, suggests a coordinated effort to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.com/pify?keyword=bollywood+new+movie+song+mp4+free
    • http://pamomefi.champion-education.com/uploads/1/3/1/4/131437623/jedutosifam-jisuxilinamofo.pdf
    • http://nasevezi.maritimesmallfarms.ca/uploads/1/3/0/7/130739430/xapozur.pdf
    • http://rivinev.jshpf.com/uploads/1/3/2/8/132815154/48cedce5d2a0b.pdf
    • http://zefomod.knightsschool.com/uploads/1/3/1/3/131398102/wegakogomonoli.pdf
    • http://files.merrillicedrags.com/uploads/1/3/0/7/130775398/2167697.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/taselalodomojobuda.pdf
    • https://cdn.shopify.com/s/files/1/0432/1024/4256/files/pabonasubafawafivati.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/mubimazikameduduraluzizo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4807/4396/files/tilenarasogabi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6335/2227/files/kinorez.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/41921568758.pdf
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/blastomyces_dermatitidis.pdf
    • https://cdn.shopify.com/s/files/1/0436/7391/1449/files/68771807941.pdf
    • https://cdn.shopify.com/s/files/1/0448/2859/0242/files/mahindra_tractor_logo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/19248835674.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e1a.bin
39d3ef58c84f9fa512b37356bd3edf00780155babdf331863eaf055b1b1c91fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1A 5544 bytes
font_01_sfnt_off0000610b.bin
0baa182db6b42eb478b3b55198d49bce68497fe757970573f939789d299bf9e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610B 9704 bytes

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