Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08cf43e786a045b…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 15:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66123d03af6feb75a9973675a46b76e9 SHA-1: 09a4377c2cc63f78d85364767e90248c5cde1380 SHA-256: e08cf43e786a045b4057c30baec6816a46df29eb28e56a5d2c1c8253fda12042
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, a common technique for SEO poisoning or redirecting users to malicious sites. One of the primary links, 'https://ttraff.com/pify?keyword=boot+configuration+data', is flagged as a malicious redirector. The document body is heavily obfuscated but contains references to the same URLs. The presence of a malicious redirector link and the mass of external links strongly suggest a phishing or redirection attack.

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/pify?keyword=boot+configuration+data
    • http://files.twohensandtheirchicks.com/uploads/1/3/0/7/130738917/5592923.pdf
    • http://files.confidance.com/uploads/1/3/0/8/130874501/bbdf3eb7.pdf
    • http://files.dennishorseshoes.com/uploads/1/3/2/7/132740270/442f637.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/54556204497.pdf
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/jegekejiritado.pdf
    • https://cdn.shopify.com/s/files/1/0432/8488/9758/files/4139813172.pdf
    • https://cdn.shopify.com/s/files/1/0432/2823/3885/files/firujorevafovenosefatulad.pdf
    • https://cdn.shopify.com/s/files/1/0430/6550/8002/files/25997850903.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/66186208827.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/tepotufimexezo.pdf
    • https://cdn.shopify.com/s/files/1/0437/5255/4657/files/juvizon.pdf
    • https://cdn.shopify.com/s/files/1/0439/2042/5115/files/tuduvebetosalileto.pdf
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/rogetazoferalumusi.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_off00006859.bin
8d64b4085035354c00af9d93dea424a3a7b5e5f514ec4a7f9645a9d561b0b032		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6859 5028 bytes
font_01_sfnt_off00007988.bin
f6a3a1f958d58eef2786176b05589ddb0889056e8a4f3bbe3c891accafb55951		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7988 15592 bytes

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