Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb9bca44b3c9ec61…

MALICIOUS

PDF

46.9 KB Created: 2020-04-06 05:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6ad8659353277dae0cb2ac3fc95fe84d SHA-1: 91532697f056780a2a432d5e1da21b84e53b102f SHA-256: cb9bca44b3c9ec61c6be65dbbd00c599f2df477cc0de3e5be7a3a4493d877c28
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to "images to reflect on life" and references the wkhtmltopdf tool, suggesting a lure to SEO-optimized content. The primary intent appears to be driving traffic to a network of linked websites, likely for advertising or other SEO-related malicious activities.

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://growmygardens.com/uploads/1/3/0/6/130639984/130639984.html#im%C3%A1genes+de+reflexionar+sobre+la+vida
    • http://codaergosum.com/uploads/1/3/0/6/130604518/9672209.pdf
    • http://shotonstage.org/uploads/1/3/0/9/130969077/zoburexi.pdf
    • http://vploan.com/uploads/1/3/0/4/130488786/c74b97.pdf
    • http://vrbeforeitstoolate.org/uploads/1/3/0/5/130588164/caded851ac97b6a.pdf
    • http://sensitivoantonio.it/uploads/1/3/0/5/130588426/juguvat.pdf
    • http://angelstread.com/uploads/1/3/1/3/131381067/8048451.pdf
    • http://newlingpodiatry.com/uploads/1/3/0/5/130544190/2327552.pdf
    • http://japanotebook.com/uploads/1/3/0/3/130379204/4482046.pdf
    • http://rwharrison.com/uploads/1/3/0/8/130815437/nadepanosituxotomawu.pdf
    • http://hendersonhslibrary.com/uploads/1/3/1/4/131453208/maxus_tereziripal_doroxusoto_nipaxulemeko.pdf
    • http://theafterspill.com/uploads/1/3/0/5/130590205/wafipilidi-foferazipenon-duzitusar-sabila.pdf
    • http://generationzen.net/uploads/1/3/0/8/130874233/2166664.pdf
    • http://asareconsulting.com/uploads/1/3/0/6/130620762/lenegimobuwumom.pdf
    • http://barkume.biz/uploads/1/3/0/2/130271187/4558930.pdf
    • http://mhsportevents.com/uploads/1/3/1/3/131380901/4534017.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_off00008ac1.bin
9a58e9099f422bcc9f7bbad78a78beba860a536649a41bd0d2832706989309bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC1 9272 bytes

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