Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad239dfd4586d506…

MALICIOUS

PDF

40.5 KB Created: 2020-08-19 17:10:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74d723c749b1ff23090418468a69b17a SHA-1: 01b56a5c8e1b4f8218db7a67c489c306fe237cfa SHA-256: ad239dfd4586d5065ecfcfed15040c8850a84892e3c1d8db32df55144d6eea31
120 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous PDF files hosted on Shopify, likely as a SEO poisoning tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=speaking+the+truth+in+love+pdf', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, potentially 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=speaking+the+truth+in+love+pdf
    • http://files.doctorandrewwu.com/uploads/1/3/2/8/132814898/60db14001609.pdf
    • http://mevotu.happyhealthyyoga.co.uk/uploads/1/3/0/7/130776445/medozuzat_midula_nawuvibawotarig.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/neberufusogagedi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1740/3549/files/kutofogutanewe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/developmental_biology_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8158/7095/files/59236916483.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/3015012176.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/dasafezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9423/6572/files/autodesk_inventor_professional_2015_full_crack.pdf
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/89057781872.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_off000060ed.bin
32beef9c30bd14ae57d291c74f06202b4d5f3f42d7fce2fb0783adc0afc8b78d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 5352 bytes
font_01_sfnt_off00007321.bin
bf4638114d4d71fc26c75bdf59b02d1f0f1ee4589a5847519af3b1897d82dac3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 10176 bytes

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