Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cbb0de58190b437…

MALICIOUS

PDF

57.9 KB Created: 2020-04-02 11:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8badbfe88e63f1e74190ceb5b3adfdd6 SHA-1: 84b2d5ef773d49d483a78bb1685962adacabb508 SHA-256: 1cbb0de58190b4374e64411c27bced0a6da29136f032a6335b193d0e29090496
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 User Execution

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The embedded document body text, though partially garbled, includes a URL that points to an external HTML file. This suggests the primary purpose is to redirect the user to a collection of other PDF documents hosted on various domains, likely for SEO spam or to distribute further malicious content.

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://jmartinbuildingltd.com/uploads/1/3/0/7/130739879/130739879.html#cu%C3%A1l+es+la+diferencia+entre+la+ss+y+la+gestapo
    • http://missionarytoargentina.com/uploads/1/3/0/5/130547812/31e7f9c710a3.pdf
    • http://lawncareofbatonrouge.com/uploads/1/3/1/0/131070424/5da76cec2962d2.pdf
    • http://botanytownhomes.com/uploads/1/3/0/5/130589098/selisalalaline.pdf
    • http://wpgcotw.com/uploads/1/3/0/2/130289735/dirasinamef.pdf
    • http://countylinelogisticscenter.com/uploads/1/3/0/6/130640178/3bd74e.pdf
    • http://harveyclay.com/uploads/1/3/1/4/131408537/garuzabugorufof-wekibe-wesutilo.pdf
    • http://splashlondon.ca/uploads/1/3/0/5/130588989/7944666.pdf
    • http://jennagaunt.com/uploads/1/3/0/7/130776645/mukenadobe.pdf
    • http://marvellousbling.com/uploads/1/3/0/6/130622114/2088790.pdf
    • http://iphonerepairswiss.com/uploads/1/3/0/2/130287401/f4c9d45.pdf
    • http://dsprototype.com/uploads/1/3/0/6/130639750/4ca1344c99.pdf
    • http://guttersofatlanta.com/uploads/1/3/0/2/130289733/04c429cacc0.pdf
    • http://virginiabeachdominatrix.com/uploads/1/3/0/5/130550844/2691867.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_off0000b656.bin
7537bce16bc0c65fa0f34eaea9703523a142babf1eb966032eee9dccde9a28f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB656 9496 bytes

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