Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bec9209410666d3…

MALICIOUS

PDF

30.7 KB Created: 2020-04-13 12:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6157b2e5dec483e6eb23d9b88173ea54 SHA-1: f5e4b080cb02af73d4ee0f891696bf731e10a565 SHA-256: 9bec9209410666d33ebe078a008679aebc0a877857dfd884c869fdf5c16d02a4
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. These links appear to be part of a link farm designed to inflate search engine rankings or distribute traffic. The document body itself contains a mix of seemingly random text and URLs, suggesting it is not a legitimate user manual but rather a 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://directroofrestoration.com/uploads/1/3/0/5/130540699/130540699.html#braun+hand+blender+user+manual
    • http://backyardist.com/uploads/1/3/0/8/130813514/e8147648d5ece5c.pdf
    • http://melindaconnor.net/uploads/1/3/0/4/130483202/bapudigivurijolejena.pdf
    • http://3mrentals.com/uploads/1/3/0/3/130379271/8ee6b60b525401.pdf
    • http://damnthemosquitos.com/uploads/1/3/0/3/130379804/tedelojafemodafaroj.pdf
    • http://lawndad.com/uploads/1/3/0/3/130323552/e4c76d4e9da20ef.pdf
    • http://brandtechvisual.com/uploads/1/3/0/6/130621388/wavogunota-nanufap.pdf
    • http://bulldogrestorationservices.net/uploads/1/3/0/4/130488500/1737471.pdf
    • http://chrisburnettvoiceactor.org/uploads/1/3/0/8/130814100/8887549.pdf
    • http://trojantailgateclub.com/uploads/1/3/0/9/130969046/9c1a4ff.pdf
    • http://pawpackz.com/uploads/1/3/0/7/130775583/verutajodakegov.pdf
    • http://rosscoyle.com/uploads/1/3/0/6/130620423/mabagemenabija_judevijalok_wuwujixonividup_nasamugiku.pdf
    • http://graisa.com/uploads/1/3/1/4/131437412/kaxuruduxuxopavupexa.pdf
    • http://porttackpress.com/uploads/1/3/1/3/131383553/1585059.pdf
    • http://littleprayers.net/uploads/1/3/1/4/131437833/3373103.pdf
    • http://blackwomenwithotherbrothers.com/uploads/1/3/0/6/130605347/378e693be30.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_off000052a4.bin
b26cb3428fc630427de957e3d4584bf5dfde558a002622ebf352b35738acfc76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52A4 7172 bytes

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