Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0dce5715f4f3b74…

MALICIOUS

PDF

38.7 KB Created: 2020-04-08 10:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ff16f521b0ec30f871c7f9a9a4d3792e SHA-1: 01a394173c66872b0ed4c4d0c20175d46236f0fc SHA-256: a0dce5715f4f3b74549c27c5e8ce00f5deb2672c388e57e9d30240f8fd5fc4fb
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, each hosting a PDF file with a numeric slug in the URL. This pattern suggests an attempt at SEO manipulation or a link farm designed to distribute malicious content or redirect users to phishing sites. No scripts were extracted, and the document body is heavily obfuscated, but the sheer volume of external links is highly suspicious.

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://softsensationsonline.com/uploads/1/3/0/6/130639931/130639931.html#5+elements+of+rhetorical+situation
    • http://kevintindell.com/uploads/1/3/0/7/130776819/zadop-kijifo.pdf
    • http://okimages123.com/uploads/1/3/0/5/130590351/8801888.pdf
    • http://vickas.net/uploads/1/3/0/4/130490451/114592c2.pdf
    • http://thesocialplateblog.com/uploads/1/3/0/5/130539311/genuso.pdf
    • http://tealeafbooks.com/uploads/1/3/0/7/130740590/1627837.pdf
    • http://westinhotel.org/uploads/1/3/0/5/130545681/jovok.pdf
    • http://emibabyxo.com/uploads/1/3/0/5/130539818/relut-zuvebak-japefa.pdf
    • http://independentpharmacists.com/uploads/1/3/0/2/130273571/5428045.pdf
    • http://awgstructuralsteelsupplies.com/uploads/1/3/0/9/130969810/zovutiwerujujifanawi.pdf
    • http://crosbyhillbandb.com/uploads/1/3/0/8/130874146/xupegugu-lamazut-mekiv.pdf
    • http://grin-and-tonic.com/uploads/1/3/0/8/130874368/fupum.pdf
    • http://gardenandgrainssoapcompany.com/uploads/1/3/0/7/130775251/056918.pdf
    • http://sapphirafarm.com/uploads/1/3/0/7/130776314/kuropuju.pdf
    • http://orphancaresolutions.com/uploads/1/3/1/3/131383764/3020307.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_off00006d73.bin
9d2fef5f6f98edabeb7f0f3e3d559ab9aa9c27dcbc29d8378511c06b2452b32e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D73 8336 bytes

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