Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf2e0c36135dab5…

MALICIOUS

PDF

38.7 KB Created: 2020-03-29 12:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 936546f7997b220a6354e5607b0cb24d SHA-1: 24886200927749ea97136b2e6cb10586581ffd14 SHA-256: 7cf2e0c36135dab5f73ec795fda4075c3d43ac6b4e6b5cad580ff09f5a5b9e26
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links to other PDF files hosted on various domains, indicative of a link farm or redirection scheme. The document body text, while seemingly innocuous, is likely a lure to encourage users to interact with the embedded links. The primary attack pattern involves leveraging these links to redirect users to potentially malicious content or further stages of an attack. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://www.peakathleticsystems.com/uploads/1/3/1/3/131398102/131398102.html#my+troy+bilt+tb200+mower+won%27t+start
    • http://dansellsdenver.com/uploads/1/3/0/4/130483385/ridamubesovew.pdf
    • http://drnuuwan.com/uploads/1/3/0/6/130603789/f07cf9d0d0.pdf
    • http://padoute.com/uploads/1/3/1/3/131384171/1762389.pdf
    • http://redeemingkimberly.com/uploads/1/3/0/6/130620843/gagusuz.pdf
    • http://pjscoupons.com/uploads/1/3/0/2/130270796/fafamaberabe.pdf
    • http://sofiacarmel.com/uploads/1/3/0/4/130477152/zikulaluje.pdf
    • http://precisionsprayfoam.net/uploads/1/3/0/8/130814341/ledifemex-bumexuf-janinu.pdf
    • http://chalkituptohope.com/uploads/1/3/0/2/130289554/6474326.pdf
    • http://murphydebateclub.com/uploads/1/3/0/7/130775827/puvub_gogesufonikesi.pdf
    • http://irresistibletrendz.com/uploads/1/3/0/5/130539225/fuguvuraderuba_viwesodezeguj_pinubolu_suvedux.pdf
    • http://coastarchitect.com/uploads/1/3/0/5/130551775/1538633.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_off00006e17.bin
31bb2b0b8520715e1ba6651ef95781836ecb08dfd730bf2e39dc387ee81322a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E17 8124 bytes

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