Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79af1c172b5c0db…

MALICIOUS

PDF

36.2 KB Created: 2020-04-06 10:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9a259e7b1aa601afb3215bf064718a94 SHA-1: 6d262c1fbdb9b9e1a9914fa397cf4c3683f7f816 SHA-256: e79af1c172b5c0db91cdda78bca2944ae61cc8f94e7ad4a5baadd08275dba111
92 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, a technique often used for SEO poisoning to drive traffic to malicious sites. The document body itself is obfuscated but contains a movie title lure. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rbljconsulting.com/uploads/1/3/0/5/130588747/130588747.html#pelicula+los+ilusionistas+2+completa+en+espa%C3%B1ol+latino+hd
    • http://vegasinspireduav.com/uploads/1/3/0/4/130477007/61acacc70.pdf
    • http://elizabethbuckner.net/uploads/1/3/0/2/130291441/bodowik.pdf
    • http://tgwconsultingservices.com/uploads/1/3/0/5/130546923/6eefe6b1.pdf
    • http://hercubs.org/uploads/1/3/0/2/130271128/povaxizon-dugoxu.pdf
    • http://natuurcandles.com/uploads/1/3/0/2/130287488/4a4ecb9c7c1cea2.pdf
    • http://look-for-the-moon.com/uploads/1/3/1/0/131070712/maxor-nijogalifazaf.pdf
    • http://nwminiatureshow.com/uploads/1/3/0/3/130323212/590437.pdf
    • http://abtut.org/uploads/1/3/0/5/130550884/gowejupimorozakawig.pdf
    • http://thefrenchcomte.fr/uploads/1/3/0/8/130874164/wenuterogulid.pdf
    • http://autonationoversprayremoval.com/uploads/1/3/0/4/130436451/tabizaxisewefosimi.pdf
    • http://greerrealtor.com/uploads/1/3/0/4/130476632/41364.pdf
    • http://renaissancethreekeys.com/uploads/1/3/0/7/130775164/puwomojofak.pdf
    • http://theholisticesthetician.com/uploads/1/3/0/8/130814681/5daef4f6ea6c9a.pdf
    • http://syncopatedance.com/uploads/1/3/0/4/130491271/zutixaposume.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_off0000605f.bin
56632c95b0ca5a1d5c3520b4e52064d59273be6eb8a53a3b04e25f39d98f7113		 pdf-font-stream PDF embedded font (sfnt) at offset 0x605F 8952 bytes

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