Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4849b2a7264c7d5…

MALICIOUS

PDF

57.8 KB Created: 2020-08-10 08:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fddc604234e67a6f8b9d5a78a795528 SHA-1: c994a9ef18c249636314af6bf6b019da350265ca SHA-256: f4849b2a7264c7d51e6e19eb8deeb94bf94702b0cc1b2dec20f23eaeaf711737
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 as a PDF link farm. One critical heuristic indicates a malicious redirector link, suggesting the document is designed to lead users to harmful content. The presence of numerous shopify.com and other file-hosting links points towards a potential SEO manipulation or content stuffing tactic to obscure malicious intent.

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=spironolactone+davis+pdf
    • http://files.josephpyfferoen.com/uploads/1/3/1/3/131398360/tipikukoxizesad_dofup_rezapakazunodif_nopege.pdf
    • http://files.ianmichaelgood.com/uploads/1/3/2/6/132681931/fipuke_kagibugetoxa.pdf
    • http://files.datumfoundation.org.uk/uploads/1/3/2/8/132815785/kipelutibe.pdf
    • http://files.artronshop.com/uploads/1/3/0/8/130814121/6732610.pdf
    • http://fesupup.rex-peoples-choice.com/uploads/1/3/1/3/131380213/matigar_kesamukoze_gikuva.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/15614126719.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/64241677165.pdf
    • https://cdn.shopify.com/s/files/1/0439/5663/3758/files/logan_lathe_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/pimojawijumiz.pdf
    • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/39617832551.pdf
    • https://cdn.shopify.com/s/files/1/0432/0316/6370/files/sikutujaveziwaponexutiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/jofaxazinapubop.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/jawijitenizotuzafizawaxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/10312119836.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/fuxid.pdf
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/mabinej.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_off0000a4f9.bin
fd5c13a9cd63f57953cffb55aeecf183697180ba28fe331f3d5d92f0679992bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4F9 5312 bytes
font_01_sfnt_off0000b71c.bin
970b443101cf2861ec9036eae7f81217ace0762d9f54d4cda7bb14893d2601b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB71C 10336 bytes

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