Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dbf966fd641d297…

MALICIOUS

PDF

28.8 KB Created: 2020-04-04 11:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 424be2977ea1ad8b6bcb91c94fde29d2 SHA-1: 3a5ce1684e3838f857c88cbee4889a0a5ad09618 SHA-256: 9dbf966fd641d2972cf53e4a922ce970720f6da90f93c370149cbbadc245f55d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 User Execution

The PDF file contains a significant number of external links, identified as a link farm. The primary heuristic indicates a mass of external PDF links, suggesting a tactic to manipulate search engine results or distribute further malicious content. The embedded URLs point to various domains, all likely part of this link farm. No scripts were extracted, limiting the analysis of direct payload execution.

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://verdouw.info/uploads/1/3/0/8/130874076/130874076.html#dometic+duo+therm+quick+cool
    • http://lauracampbellforcouncil.com/uploads/1/3/0/5/130545954/gasopa_nimalir_gedubogelepevu_bodusebanub.pdf
    • http://starkfitnessandrunning.com/uploads/1/3/0/5/130588231/915a5419aee3b.pdf
    • http://calebwolfemusic.com/uploads/1/3/0/5/130543437/peripuju.pdf
    • http://plsdecorators.com/uploads/1/3/0/2/130272850/pesujobivelanur-pedetagi.pdf
    • http://bhshousingessay.com/uploads/1/3/0/2/130287413/rovuxulexi-naret-terasapu.pdf
    • http://hiwasseerentals.com/uploads/1/3/0/5/130550972/wofexabejowakalazuxo.pdf
    • http://revelation-church.com/uploads/1/3/1/3/131378791/mosededatirorutevo.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_off00004bbe.bin
57f3f099b1b371d8175443d164fe4767ad7288349def6288bff9e90419d5f295		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BBE 6888 bytes

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