Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ea3896e6a6d871…

MALICIOUS

PDF

59.1 KB Created: 2020-08-07 02:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75a5ab8e767e15e2faa5eaa7ed34d4bf SHA-1: 651542b31f09084913c219d758629518c049a629 SHA-256: 46ea3896e6a6d87129b35ae3e4d40f7e894f81714dcde51ed421e1c79f766d76
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=classic+human+anatomy+valerie+winslow+pdf+download'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a PDF link farm further supports the SEO spam or phishing lure. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=classic+human+anatomy+valerie+winslow+pdf+download
    • http://files.francishurley.com/uploads/1/3/0/9/130969356/putoder.pdf
    • http://files.selltvservice.com/uploads/1/3/2/7/132740965/nurojilozoki-niremagax-joxopa-todoluzusagomov.pdf
    • http://files.konjipikaron.com/uploads/1/3/1/3/131383456/meveverozu-julavetasaba-lotisomojej-mebovivef.pdf
    • https://cdn.shopify.com/s/files/1/0438/8493/7384/files/57346416109.pdf
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/jinumepubegesoriw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8577/4491/files/1548596575.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/18278567797.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30552771564.pdf
    • https://cdn.shopify.com/s/files/1/0437/4413/3281/files/92764052005.pdf
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/nisowuvejew.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rimudunibodosugesujusuvud.pdf
    • https://cdn.shopify.com/s/files/1/0437/0140/3801/files/finally_moving_pretty_lights.pdf
    • https://cdn.shopify.com/s/files/1/0429/5622/6716/files/fajojurileminen.pdf
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/barium_meal_radiology.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009343.bin
c7d1167c5776f47073576af678db682dd8f496060eabd25b16b77f282d0ae9bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9343 5556 bytes
font_01_sfnt_off0000a615.bin
84cfa9da033037281b5af53ea7cdde48411b083e57b736d157d03b5dd0250ceb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA615 10360 bytes
font_02_sfnt_off0000c9b9.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B9 16092 bytes

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