Malicious PDF — malware analysis report

Static analysis result for SHA-256 c616650af749e09e…

MALICIOUS

PDF

48.0 KB Created: 2020-08-08 19:32:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05a7ee7536a34609896c6c4507971182 SHA-1: 6e6b76d62c5e4bfd691b1c3d8e6929a6e91ec2c6 SHA-256: c616650af749e09eb9c4a6ca7cb03690599ad51860f56c679e53846056c17930
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that leads to a URL containing 'swing trading strategy forex pdf', suggesting a lure for financial-themed phishing. The PDF also contains a large number of external links, many pointing to Shopify, likely part of a link farm to improve SEO for malicious content. The ML classifier strongly indicates maliciousness. No scripts were extracted, but the primary attack vector appears to be the embedded malicious URL.

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.ru/pify?keyword=swing+trading+strategy+forex+pdf
    • http://jazin.avakonohiki.org/uploads/1/3/1/4/131452883/916b54b.pdf
    • http://files.p-over-p.com/uploads/1/3/1/0/131070351/5453657.pdf
    • http://files.thebathbombshop.co.uk/uploads/1/3/1/4/131438308/berokododa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/rejem.pdf
    • https://cdn.shopify.com/s/files/1/0432/1280/0159/files/amoxicilina_bula_profissional.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0309/files/decision_tree_overfitting.pdf
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/genufonilipafofotimisulol.pdf
    • https://cdn.shopify.com/s/files/1/0429/8758/5699/files/59978685096.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/taveg.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5708/files/sixumeboxoxexoxovurom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/optimize_ampdu_aggregation.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/
    • https://cdn.shopify.com/s/files/1/0433/6871/0309/files/decision_tree_overfitting

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c4b.bin
5492d0c51d1c0dfff57452ec47e08d15833663418e037c7000d432f45fd3920f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4B 5544 bytes
font_01_sfnt_off00008f5a.bin
bdaf75062181ce793b1922f93124ab52121a10ff0e26e1c80f8532285bad48a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5A 10496 bytes

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