Malicious PDF — malware analysis report

Static analysis result for SHA-256 c92cc30c4e88b657…

MALICIOUS

PDF

32.1 KB Created: 2020-08-22 19:45:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85bcf8e0c944e6e980f6a68f19661671 SHA-1: e25426fdb2523773d12fc4177d4db5f8228f2699 SHA-256: c92cc30c4e88b65721d9099d81df1e1411cf9011d78f0a1be6987409d2e85341
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. One of these links, https://ttraff.cc/pify?keyword=bahamas+regular+font+free, is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, potentially leading to further compromise.

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.cc/pify?keyword=bahamas+regular+font+free
    • http://baduvov.jacquelinecutler.com/uploads/1/3/0/8/130814229/76e426f43da.pdf
    • http://files.lllofwi.org/uploads/1/3/1/3/131381363/niboximoges_gopivirizigiw_vixumumanafax.pdf
    • http://files.g-n-o.com/uploads/1/3/2/6/132683000/4710121.pdf
    • http://files.psyencholotry.com/uploads/1/3/1/8/131856380/24d3f3084a99.pdf
    • http://sezuvijix.casting4growth.com/uploads/1/3/2/6/132682156/lesorutef-milusaxexov.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/vuvunejipodibefona.pdf
    • https://cdn.shopify.com/s/files/1/0431/3359/9893/files/lizilixotovopafuburunax.pdf
    • https://cdn.shopify.com/s/files/1/0428/0241/3735/files/5398987818.pdf
    • https://cdn.shopify.com/s/files/1/0433/5029/4678/files/foxodijixenabisag.pdf
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/38848137386.pdf
    • https://cdn.shopify.com/s/files/1/0431/7652/5988/files/cissp_practice_questions_exam_cram.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/van_richten_s_guide_to_vampires.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_off0000416f.bin
5b8624043444d148696c0cc41a6f26b2ca09f7c500aedc5b7720566044743df6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x416F 5232 bytes
font_01_sfnt_off00005315.bin
5ac8fd32220281e6e33d38b64ef783e971b8533c6be4a730adc01da341474030		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5315 9688 bytes

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