Malicious PDF — malware analysis report

Static analysis result for SHA-256 450cb0c46aced850…

MALICIOUS

PDF

34.9 KB Created: 2020-03-14 22:48:51 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5358a88e37f17d6755085f5b1dbc0627 SHA-1: 5f380ee67a39ef87451ff1d8139d037219eb0021 SHA-256: 450cb0c46aced850d25e132e86f8da35ed079d040d3e3356da122f18c74590c1
62 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 to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting deeper analysis of the immediate intent beyond link distribution.

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://a1720852xstreamtravel.xsideas.com/uploads/1/3/0/5/130539260/130539260.html#cartesian+plane+worksheet+picture
    • http://bleached.net/uploads/1/3/0/7/130738625/verajonufelu.pdf
    • http://lifeschooleugene.org/uploads/1/3/0/2/130288551/3046337.pdf
    • http://allaccessbuildingservices.com/uploads/1/3/0/7/130776126/momiviv.pdf
    • http://addaihealthedu.net/uploads/1/3/0/3/130312952/gusaludozuse.pdf
    • http://sbsgeelongregion.com/uploads/1/3/0/6/130604996/meminupavex.pdf
    • http://moneymentorph.com/uploads/1/3/0/4/130476075/190791.pdf
    • http://pacaspanama.com/uploads/1/3/0/3/130313091/xujovumuribo.pdf
    • http://stagcroatia.net/uploads/1/3/0/4/130477245/zumuguwixojiwevema.pdf
    • http://thehappywitch.com/uploads/1/3/0/4/130435937/vasud.pdf
    • http://girasoulove.com/uploads/1/3/0/6/130640092/93d9973.pdf
    • http://businessboostprogramme.org/uploads/1/3/0/5/130588430/390436.pdf
    • http://646635600607468430.com/uploads/1/3/0/7/130739780/4349bad00c208.pdf
    • http://tastetravels.com/uploads/1/3/0/7/130738620/5165c14.pdf
    • http://myafricanloveseries.com/uploads/1/3/0/8/130874615/megipalagovosob.pdf
    • http://www.luxuryvintagegirl.net/uploads/1/3/0/6/130604416/9c7554b80ac8185.pdf
    • http://zingoapps.com/uploads/1/3/0/5/130590724/wisiludakovi.pdf
    • http://visitbulgaria.today/uploads/1/3/0/5/130538817/4e2d306.pdf
    • http://daylilygoatfarm.com/uploads/1/3/0/7/130739906/970359979e.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_off00006116.bin
90ef1905ddc2c271541145318f4e5899afc0bf7cab64c74ba013d657bac4bc17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6116 7428 bytes

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