Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0009757b0b963c0…

MALICIOUS

PDF

39.5 KB Created: 2020-04-07 03:36:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 911bce00ee4a37842e3866c2530e147d SHA-1: 30aadf53c7fa7eb4e80a091dd5d1dea74a558186 SHA-256: d0009757b0b963c05d144f38a9ce53e790a05bdcd166abdce6c80ce92e75457c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 Malicious Link

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a phishing campaign. The document body, though heavily obfuscated, contains one of these URLs, indicating an attempt to direct users to malicious content. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://knightsgrub.com/uploads/1/3/0/6/130621654/130621654.html#signs+and+symbols+by+vladimir+nabokov+literary+analysis
    • http://yosemiteoutdooradventure.com/uploads/1/3/0/4/130436389/7723025.pdf
    • http://houseofmonti.com/uploads/1/3/0/3/130323131/viteda.pdf
    • http://genesis-oceania.com/uploads/1/3/0/6/130604408/wolikobomekebuku.pdf
    • http://thedependakitchen.com/uploads/1/3/0/5/130547450/jufosejimelizew.pdf
    • http://colouryourworldhandmadejewellery.com/uploads/1/3/0/5/130589057/9057888.pdf
    • http://beholdgargantua.com/uploads/1/3/0/6/130639294/7585936.pdf
    • http://thefourofclubs.com/uploads/1/3/0/7/130739433/vubel_wipixesufa_jemogukene_migopipegul.pdf
    • http://olemisstridelta.org/uploads/1/3/0/6/130621193/xujilomu.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007268.bin
e011427bcc1ec520ff5d214237fbd1a1983219ffc1722671f6ab6ac5602d389c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7268 7892 bytes

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