Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b23ce7193a0bb5…

MALICIOUS

PDF

41.3 KB Created: 2020-03-30 20:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 53a7a26871825f9ea73ff54a88e5c304 SHA-1: 115fe7892101560834fe91d42d2709f2cb4a8fbf SHA-256: 60b23ce7193a0bb5150a8e259bef8f80e9a3fb8ce04f3a8ad6ca5b6c4276c0d0
96 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, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The ML classifier also strongly indicated maliciousness. This suggests the document is designed to lead users to a network of malicious or SEO-manipulated sites, potentially for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ceramicleague.com/uploads/1/3/0/5/130546803/130546803.html#palabras+que+lleven+al+final+mente
    • http://beccastancliffe.com/uploads/1/3/0/7/130776219/9344150.pdf
    • http://mx.angelindy.com/uploads/1/3/0/7/130776529/df3a9f.pdf
    • http://www.spacecoasthomewatchllc.com/uploads/1/3/0/6/130604597/d488b5ee2.pdf
    • http://levelupcareeradvice.com/uploads/1/3/0/5/130551375/segofubimekawavi.pdf
    • http://tomosalilford.com/uploads/1/3/0/5/130539403/acae7.pdf
    • http://annetheguide.wales/uploads/1/3/0/5/130550948/bugesuwiwofebo.pdf
    • http://pursuecustomz.com/uploads/1/3/0/6/130620249/5b8501.pdf
    • http://atlantaenforma.com/uploads/1/3/1/3/131398140/bf7101480b.pdf
    • http://server65164.misscarols.com/uploads/1/3/0/6/130604948/6694765.pdf
    • http://www.cptlondon.com/uploads/1/3/1/4/131437728/871185a88.pdf
    • http://yogawithjessika.com/uploads/1/3/0/5/130539093/juxeg.pdf
    • http://lionsforthelamb.org/uploads/1/3/0/6/130604313/e31887ee4.pdf
    • http://tmvix.net/uploads/1/3/0/6/130604742/moniridemoved.pdf
    • http://aerialprotectivesolutions.com/uploads/1/3/0/7/130776032/rukiligikim.pdf
    • http://plazalaundry.net/uploads/1/3/0/8/130813897/09c573d62cd5.pdf
    • http://nothingeasylifestyle.com/uploads/1/3/0/3/130313161/tugomu_sapow.pdf
    • http://concorddruglawyer.com/uploads/1/3/0/5/130540397/09bc1.pdf
    • http://jamesvieira.com/uploads/1/3/0/5/130551704/9010384.pdf
    • http://ecustommedia.com/uploads/1/3/0/2/130288939/redir.pdf
    • http://laveh.com/uploads/1/3/0/6/130603890/1af3d.pdf
    • http://thisisbourboncountry.net/uploads/1/3/0/8/130813740/puweveburowukox.pdf
    • http://sohospirituality.com/uploads/1/3/0/9/130969195/wilawegojiged-divokot-kodam-suzotego.pdf
    • http://lostboys2019.com/uploads/1/3/0/9/130969656/5559894.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_off00007633.bin
9484f81ae5de371c28627605fc2c1637db80b55555d3d2ead24f4d9cc34ee29e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7633 8924 bytes

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