Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e462581029680a…

MALICIOUS

PDF

28.9 KB Created: 2020-04-08 00:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 548be1f6404ef3a64bc249865204eaa6 SHA-1: 207ff3d1c5bc79c45fc6f34389b6f4d4b1e37dbf SHA-256: 87e462581029680a5dbe87909dd9919c8ed6905c81701281e2a0286542996fba
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or distribution network. The document body contains garbled text along with a reference to 'burn baby burn lyrics' and the wkhtmltopdf generator, indicating it was likely programmatically generated. No scripts were extracted, but the sheer volume of external links points to a malicious intent, possibly to distribute further malware or engage in SEO abuse.

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://divorceempowermentcenter.com/uploads/1/3/0/7/130738730/130738730.html#burn+baby+burn+lyrics
    • http://mskeleta.com/uploads/1/3/0/7/130775588/rugubagigejekuzevo.pdf
    • http://beautybyamichelle.com/uploads/1/3/1/4/131438337/f580b0df.pdf
    • http://bdrenovations.org/uploads/1/3/0/3/130323656/8425597.pdf
    • http://cashmytruck.com/uploads/1/3/1/3/131382841/e4135e.pdf
    • http://malainavaden.com/uploads/1/3/0/8/130813558/4579708.pdf
    • http://mordecaimatters.com/uploads/1/3/0/7/130739833/wusobanatonun.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_off00004d54.bin
cff73f608eba18e0b68dc98765e78a5c26a7108d797bea366ec22f855f3eb26a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D54 6524 bytes

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