Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15ce594edf16be2…

MALICIOUS

PDF

41.4 KB Created: 2020-03-29 07:25:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9a5060b619f0364c28c429bc03b911eb SHA-1: 4eb80132ac18366193f1bc68c941ec8773012cc8 SHA-256: f15ce594edf16be2e87f86aa6e69735ceeb55af454a9fdf5f9e2fc80b46e472d
92 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, characteristic of a link farm designed to improve search engine rankings for malicious content. The document body, though partially obfuscated, contains a URL that is also present in the list of external links. The primary goal appears to be directing users to a network of compromised or malicious websites.

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://adsl-63-204-18-60.benefitplans.org/uploads/1/3/0/7/130740258/130740258.html#cual+es+el+peso+volumetrico+del+concreto+asfaltico
    • http://neokundalini.org/uploads/1/3/0/4/130483811/mobukogi-forilivitujeka-wuxunin-tenel.pdf
    • http://carashermosasbylavita.com/uploads/1/3/0/7/130738797/a9b02.pdf
    • http://mariano-piaf.com/uploads/1/3/0/6/130604288/katisi.pdf
    • http://caricofarms.com/uploads/1/3/1/0/131070652/083ebd56.pdf
    • http://ginadalfonzo.net/uploads/1/3/0/7/130738562/fupirot-pajur.pdf
    • http://jmmarcom.com/uploads/1/3/0/4/130478259/xofalokodefirebagu.pdf
    • http://amorali.com/uploads/1/3/0/6/130604759/40142a1915.pdf
    • http://kellykronicles.com/uploads/1/3/0/6/130604654/3104982.pdf
    • http://blogg.allegro-as.no/uploads/1/3/0/6/130620537/tafelabep-gesipiwijezapid-tedopesegubun.pdf
    • http://qigongfirenze.com/uploads/1/3/0/6/130640013/455b83b335cf2.pdf
    • http://alcohol-counseling.net/uploads/1/3/0/8/130814479/bacd917a2.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dc3.bin
b095009e1aa7b679086a2dd093949a1e2bfdfa179c83d9e64a20210f199a406d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC3 1544 bytes
font_01_sfnt_off00007533.bin
907eb51ae3f0bda69e7dbc00a6a4b8a47e8e4b625b08d6193221ea05ee20e16c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7533 9076 bytes

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