Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62a1477814d9b13…

MALICIOUS

PDF

34.4 KB Created: 2020-08-03 07:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fba459877f0ab12ea813021ee2731cc SHA-1: 73de86b542a2c0f419e8c84ec1d7d905d7bb4e95 SHA-256: a62a1477814d9b13005dfc59bd632d585869e0aacbeb78c73efbf4961c77114b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, 'https://ttraff.com/wb?keyword=trouble%20coldplay%20partitura%20piano%20pdf', is identified as a known malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to direct users to malicious sites.

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.com/wb?keyword=trouble%20coldplay%20partitura%20piano%20pdf
    • http://files.nurturingnaturallyllc.com/uploads/1/3/1/8/131859895/ab5ec624.pdf
    • http://files.mary-jomurphy.org/uploads/1/3/1/8/131856698/15c1b2e499b0d1.pdf
    • http://files.skar-productions.com/uploads/1/3/0/9/130969399/tiwix.pdf
    • https://cdn.shopify.com/s/files/1/0432/7083/2283/files/47498846358.pdf
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/34005552438.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/nosoruke.pdf
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/mabazuderuvafa.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/53042886168.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/54780639352.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/30019380028.pdf
    • https://cdn.shopify.com/s/files/1/0437/0651/5611/files/88896170063.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gimuwuwizarisatin.pdf
    • https://cdn.shopify.com/s/files/1/0434/8493/8402/files/49664470630.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/figorotuzifi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/46409278264.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_off000047f8.bin
c2ef45900ca6d70f71ad5deed7a13ecb44718f1e4b1f4ea2a5b5ab0b91d5f4d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47F8 5160 bytes
font_01_sfnt_off00005999.bin
6c50dd35e4b51d6dc7c78def4a7ccc062dc43c0815ffd1c60e6c86b1965c0797		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5999 10260 bytes

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