Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45599fe9f544aa8…

MALICIOUS

PDF

44.0 KB Created: 2020-03-30 03:26:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 93f564cabd6ac1a9ff5498f8cf40ee01 SHA-1: aa67371c3eee5770d0b4e7f398f61747f6cfec40 SHA-256: f45599fe9f544aa8ca10259b4e6ada5aeeec2f6e5f5bb62f83d5afb47af4edfc
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are dynamically generated and point to PDF files on various domains. The document body text, though partially corrupted, includes a search query related to 'Herramientas electricas para carpinteria bogota', suggesting a lure to attract users to these external resources. The primary attack pattern involves redirecting users to a link farm, likely for SEO poisoning or to host further malicious content.

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://74-123-79-26.mgwnet.com/uploads/1/3/0/8/130873976/130873976.html#herramientas+electricas+para+carpinteria+bogota
    • http://charletsweb.com/uploads/1/3/0/5/130551338/rupogatalape-tutir-zalosegafomozob.pdf
    • http://yannizglobal.com/uploads/1/3/0/5/130551994/2717113.pdf
    • http://youngbinpark.com/uploads/1/3/0/7/130738929/wixaduwabek.pdf
    • http://claireallegrataylor.com/uploads/1/3/0/4/130483376/pofifovitosuw.pdf
    • http://broadbandaccess.org/uploads/1/3/0/2/130270905/feeb2838a77bf2.pdf
    • http://lynsiesgallery.com/uploads/1/3/0/2/130287845/jeludamuzoru.pdf
    • http://remarquezstallion.com/uploads/1/3/0/6/130639162/zunup_gajupupivexola.pdf
    • http://insciteillinois.org/uploads/1/3/0/8/130813859/totemimufewix.pdf
    • http://matthewkcompton.com/uploads/1/3/0/6/130620971/af068b3.pdf
    • http://beneficialearth.com/uploads/1/3/1/1/131163579/38cd8.pdf
    • http://ardmorevetservices.com/uploads/1/3/0/7/130738778/bejojuve-warobuxopos-junagenoporovo.pdf
    • http://jewelgobeanutrition.com/uploads/1/3/0/7/130776068/bulunekinubanalop.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_off000080a0.bin
b6985b2b8e58085f5823c0edbb6c75aede7a6fe79e88b85862fce28303328dbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A0 8972 bytes

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