Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6a2f01f058f7ce5…

MALICIOUS

PDF

39.0 KB Created: 2020-04-11 20:09:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 81887cde8bde771abb59ff8bfcb0a8db SHA-1: 5a12a2c268b3beff2090245b92770931dfc0b5ed SHA-256: b6a2f01f058f7ce539374bf1ac30bf190b8cd96d8758fddbddb7be3b4ead4086
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body itself is largely unreadable due to encoding issues, but the presence of the URL http://thegapfestival.com/uploads/1/3/0/4/130436307/130436307.html#actividades+ludicas+para+contar+un+cuento indicates a potential lure. No scripts were extracted from this sample.

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://thegapfestival.com/uploads/1/3/0/4/130436307/130436307.html#actividades+ludicas+para+contar+un+cuento
    • http://sewsewlovely.com/uploads/1/3/0/5/130541271/jowemajotepuk.pdf
    • http://gukasxpress.com/uploads/1/3/0/4/130488513/xijezadune.pdf
    • http://nortonelec.com/uploads/1/3/0/3/130323290/xofujapogi_zosixuxus_divab_vubazixavi.pdf
    • http://goodiesunlimited.store/uploads/1/3/0/6/130620382/nagefatejeverezixu.pdf
    • http://samwisemagic.com/uploads/1/3/0/5/130589042/bujowomim.pdf
    • http://mrsjdodds.com/uploads/1/3/0/4/130483542/1431945.pdf
    • http://veryrio.com/uploads/1/3/0/2/130289244/manapiz.pdf
    • http://9thwonderco.com/uploads/1/3/0/5/130544138/sijir-vewedoxo.pdf
    • http://tillerenergypartners.com/uploads/1/3/0/5/130588550/9dff24c.pdf
    • http://missanny.net/uploads/1/3/1/4/131408849/5bfeac06.pdf
    • http://removewrel.com/uploads/1/3/0/5/130546645/jimasexuzumu_gavoxoz_neduvun.pdf
    • http://shanandlousayido.com/uploads/1/3/1/0/131069824/106960.pdf
    • http://mail.ignitedance.com/uploads/1/3/0/4/130476589/f1dad1f8378.pdf
    • http://tillerenergypartners.com/uploads/1/3/0/5/130588550/9dff24
    • 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_off00006da3.bin
62af77a1a53d516676fc585801225b2db324379c8d1b75382b0fa13c27c43263		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA3 8948 bytes

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