Malicious PDF — malware analysis report

Static analysis result for SHA-256 83292d144db5f1d7…

MALICIOUS

PDF

30.3 KB Created: 2020-04-10 11:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4dc8139660236515c82824d9717a798f SHA-1: 313a026b2dcf896c456c97045336febadb5a6cd1 SHA-256: 83292d144db5f1d7498b759a13b19c812bb1517fec6759cc330ebb32e250e250
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links pointing to various domains, a technique often used for SEO link farming or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The presence of multiple numeric-slug PDF links suggests an attempt to manipulate search engine results or distribute content through a network of seemingly unrelated sites. The document body contains garbled text and a reference to 'old troy bilt rototiller parts', which may be a lure to attract specific search traffic.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://juliamirich.com/uploads/1/3/0/3/130313173/130313173.html#old+troy+bilt+rototiller+parts
    • http://trazbem.com/uploads/1/3/1/4/131407061/mizawakik.pdf
    • http://lightsoutelectric.net/uploads/1/3/0/2/130272963/dcab4dd.pdf
    • http://shelleysweetnsavvy.net/uploads/1/3/0/2/130271031/4266053.pdf
    • http://cafe-cherokawa-cebu.com/uploads/1/3/0/6/130621003/vedexinetumi_dozepivogom_mineviwov_godux.pdf
    • http://alexasweet.com/uploads/1/3/0/5/130545189/jotikatapetej.pdf
    • http://consciouscoursesandtherapies.com/uploads/1/3/0/6/130639506/wifadutaxupef.pdf
    • http://warhorse.solutions/uploads/1/3/0/4/130476548/wixujutipu_tipan_gifaf_zuvipiwez.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004de2.bin
99da8a0dedc70f75215f26759b46858f0232796006231707e0928c7568e1d3c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE2 7944 bytes

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