Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e4cd9c0cf9ac23…

MALICIOUS

PDF

51.1 KB Created: 2020-08-18 19:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fc0aec66ae9ab6580f0a127dadb0437 SHA-1: a9c29742fbdaedbdc91d1964faea5b891c418de3 SHA-256: 95e4cd9c0cf9ac23644caab7ceb8626bcbcee556cccc4c2368c464e2dc0fa1f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a specific malicious redirector URL. The document body, though heavily obfuscated, contains the text 'Manual chrysler caravan 2007' and the malicious URL 'https://ttraff.ru/pify?keyword=manual+chrysler+caravan+2007', suggesting a lure to download further content or redirect to a malicious site. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a link farm designed to manipulate search engine results or distribute malicious content.

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=manual+chrysler+caravan+2007
    • http://wotiji.natepage.com/uploads/1/3/2/7/132740405/votunugopikoju.pdf
    • http://files.sand.penguinprof.com/uploads/1/3/0/8/130873918/55d79df2.pdf
    • http://files.toniblackmanpresents.com/uploads/1/3/0/7/130775707/zivigu.pdf
    • http://files.inanothervein.org/uploads/1/3/0/9/130969985/80d4fc8399.pdf
    • http://files.washington-scottish.com/uploads/1/3/0/8/130874318/8b0f395751b7b3.pdf
    • https://cdn.shopify.com/s/files/1/0434/5833/0786/files/95293758695.pdf
    • https://cdn.shopify.com/s/files/1/0431/3455/0177/files/34234489865.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/60385897273.pdf
    • https://cdn.shopify.com/s/files/1/0432/4111/1716/files/fufejojezozebexonuxipe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97285982277.pdf
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/sulurevanedanov.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/kofumirewedigatabaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/muzaloxebomasu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/19884465009.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.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_off00007d57.bin
ff5b340b47de631767676f85922ba2724b3a7f0959078f9c7bffc7bbbcc6d481		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D57 5408 bytes
font_01_sfnt_off00008fc8.bin
1de9ec4488cb43b3f476fc5dccaeee9cb8606993bfb94bd61637c5d6a85389df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC8 15644 bytes

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