Malicious PDF — malware analysis report

Static analysis result for SHA-256 5576210a7e9d4590…

MALICIOUS

PDF

41.5 KB Created: 2020-08-15 07:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 691241f117b5b32fed867099b1d70a46 SHA-1: f06d18df658c6580b91adca19d4fa5b57324ff04 SHA-256: 5576210a7e9d4590daed3e2017396999c5bc004f02f188827ac2452dd1e538ce
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at `https://ttraff.ru/pify?keyword=canon+picture+style+editor`. This suggests the document is designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=canon+picture+style+editor
    • http://files.oma-cob.org/uploads/1/3/1/4/131452935/rubumekilifanusozu.pdf
    • http://refisu.sbtcandles.com/uploads/1/3/1/6/131606027/893cafe197f.pdf
    • https://cdn.shopify.com/s/files/1/0430/0305/2191/files/low_back_pain_rehab.pdf
    • https://cdn.shopify.com/s/files/1/0437/0874/3834/files/65286330834.pdf
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/ruwefewodum.pdf
    • https://cdn.shopify.com/s/files/1/0437/6880/7586/files/72362998590.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/dipubipafizuzafovuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/zugebuledigenexofez.pdf
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/kuboxiwavaremowenomufuva.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/17937358947.pdf
    • https://cdn.shopify.com/s/files/1/0433/8063/7861/files/20093176578.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.pdf
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/67833674329.pdf
    • https://cdn.shopify.com/s/files/1/0433/6707/1894/files/vermilion_parish_jail_inmates.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_off0000649c.bin
c53fca34d7bb54c8649dbc646850a7a35703a483f21da0e6e13e724f27430dc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x649C 5072 bytes
font_01_sfnt_off000075f0.bin
342ca8b9b4a7e45d29644bd38c2ff952a8c4b02c7f92f0242567596b511eb03b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75F0 10852 bytes

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