Malicious PDF — malware analysis report

Static analysis result for SHA-256 3df900955f9644d4…

MALICIOUS

PDF

42.6 KB Created: 2020-08-19 07:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9123b8fa32b45691f54d4283b92ad3f0 SHA-1: ffd59780bbf330ca6b94729fcdef9d4dfd9642e4 SHA-256: 3df900955f9644d44e5c36ff8cf2ee92bff559f8b335259e8a0f239ab99cddde
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=anti+theft+wheel+locking+system+pdf, which is likely used to redirect users to a malicious site. The document body, though partially corrupted, contains text related to 'anti theft wheel locking system pdf', suggesting a lure to disguise the malicious intent. The presence of many external links, including benign ones hosted on Shopify, is characteristic of SEO link farm techniques used to obscure the malicious destination.

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=anti+theft+wheel+locking+system+pdf
    • http://files.findingjoyinsurrender.com/uploads/1/3/2/7/132740293/2907542.pdf
    • http://files.cleancooks.org/uploads/1/3/1/8/131871701/3277896.pdf
    • http://files.brightstarlifestyle.co.za/uploads/1/3/1/4/131409244/ripasi.pdf
    • http://files.denisedurkinartwork.com/uploads/1/3/2/3/132302736/482f0b.pdf
    • https://cdn.shopify.com/s/files/1/0434/0849/0663/files/zuvivanidilikoruno.pdf
    • https://cdn.shopify.com/s/files/1/0430/0675/4970/files/79697006884.pdf
    • https://cdn.shopify.com/s/files/1/0435/8098/1403/files/1165412147.pdf
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/14519620181.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/adhurs_telugu_hd_video_songs.pdf
    • https://cdn.shopify.com/s/files/1/0448/2990/0957/files/94610825.pdf
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/6681819484.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/15915803232.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9715790575.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_off00006a66.bin
760cc1146ee82cafc3b606cb285c73f2e2864710f67f591b1c5ef40806530db3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A66 5512 bytes
font_01_sfnt_off00007d1e.bin
14e5721988706b5465af386f628d4f93224927b98399b0a2d21cf615a8b924bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1E 9496 bytes

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