Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3db04c3aefeee49…

MALICIOUS

PDF

37.1 KB Created: 2020-05-30 11:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bfd7f25d254eb0b2e9829512c89c9e79 SHA-1: a071341b1bba434ebf8b10242fbb663697d1c874 SHA-256: b3db04c3aefeee4935391e1e3067452e0e0b83740160f6170bdd7e2eeaff9e18
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

This PDF file contains a large number of embedded external links, a technique often used in SEO poisoning or phishing campaigns to direct users to malicious content. The heuristic PDF_SEO_LINK_FARM specifically identified this behavior, indicating a mass of external PDF links. The embedded URL http://vasahotelsurabaya-id.devsite-1.com/uploads/1/3/0/6/130604651/130604651.html#ccd+s820+spy+camera suggests a potential lure related to surveillance or illicit content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://vasahotelsurabaya-id.devsite-1.com/uploads/1/3/0/6/130604651/130604651.html#ccd+s820+spy+camera
    • http://youbrewchicago.com/uploads/1/3/1/4/131438242/lafesevukivovez_bewibaw_dibeg.pdf
    • http://draquaticcenter.com/uploads/1/3/0/7/130738819/futatewul.pdf
    • http://scarletmoonthings.com/uploads/1/3/0/4/130476751/menuwalewejigivox.pdf
    • http://yourhigherpower.org/uploads/1/3/0/4/130476114/2452852.pdf
    • http://torontogreekdj.com/uploads/1/3/0/5/130588459/lotefaniw_lijuxitinug.pdf
    • http://shanesmi201.blog/uploads/1/3/1/1/131164273/xakegugofizuk.pdf
    • http://carlsongracieencinitas.com/uploads/1/3/0/6/130604014/woted.pdf
    • http://stillwatermassage.org/uploads/1/3/1/8/131871912/9323834.pdf
    • http://wellspringkingsville.com/uploads/1/3/1/4/131483361/c38e82385b.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_off00006312.bin
321b2c88508df9c9e97170453db585ffc0c23e82920025c01eee5fd7b169d3ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6312 11252 bytes

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