Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f83fcb458d95e43…

MALICIOUS

PDF

36.7 KB Created: 2020-05-24 02:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e394a3bd8a66299e653a7fe747b0d7d SHA-1: d7fdb7063571223512f3776406cf67423a099968 SHA-256: 4f83fcb458d95e435f850552631aeaf4467e500892d3d4a3e27245b7be34834f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents on different domains. This suggests a link farm or SEO manipulation tactic. The embedded URLs are likely used to distribute further malicious content or to redirect users to phishing sites. No scripts were extracted from this sample, limiting the ability to determine specific payloads.

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://jayden-rose-leon.com/uploads/1/3/0/9/130969548/130969548.html#pathfinder+kingmaker+which+envoy
    • http://pcslogic.com/uploads/1/3/0/6/130639223/2d020b814aeb.pdf
    • http://74-123-73-136.mgwnet.com/uploads/1/3/0/5/130589049/d64ecbe.pdf
    • http://myparty-rentals.com/uploads/1/3/1/6/131607269/b7bb9d.pdf
    • http://gregdrews.com/uploads/1/3/0/4/130488286/libozofa.pdf
    • http://elevatedadulting.com/uploads/1/3/0/5/130588428/jivajasiwoj.pdf
    • http://westysciderdonuts.com/uploads/1/3/0/5/130543134/2853298.pdf
    • http://artspireva1.com/uploads/1/3/0/2/130270833/monoremak.pdf
    • http://zonemaster.kadikado.eu/uploads/1/3/1/4/131407014/4922447.pdf
    • http://vploan.com/uploads/1/3/0/6/130603737/regivotepizajil.pdf
    • http://myfallingleaves.com/uploads/1/3/1/6/131607363/491168aa1b13da.pdf
    • http://locallabour.org/uploads/1/3/0/5/130541743/fbfdf0d.pdf
    • http://brianhandley.com/uploads/1/3/0/5/130550846/sexamokaguwefanew.pdf
    • http://resealstone.com.au/uploads/1/3/1/4/131454367/308b5a5b28af.pdf
    • http://docomomo-us-symposium.com/uploads/1/3/1/3/131380476/5343778.pdf
    • http://yorktownplumbing.com/uploads/1/3/0/7/130738912/bugigazatusutorede.pdf
    • http://thehopeprojectmke.com/uploads/1/3/0/6/130621055/50717dc54.pdf
    • http://blackandpetrichor.com/uploads/1/3/0/6/130604527/30076c4333baad7.pdf
    • http://robogreenlawns.com/uploads/1/3/0/5/130588529/vutusezexuwi_kibixen_taduzil.pdf
    • http://howellemploymentsvs.com/uploads/1/3/0/6/130620480/xukumo.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_off00006291.bin
d30264093ac316c0fac58ce086d0d6eecdb9750ce230091b671fb231232f3fb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6291 10592 bytes

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