Malicious PDF — malware analysis report

Static analysis result for SHA-256 8304dccbe5246f8f…

MALICIOUS

PDF

33.0 KB Created: 2020-04-02 18:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6d16d9e7d389cd2932ccb33b0dec354a SHA-1: 93e3b0a950bffe05013046a27a3900ce76741ac1 SHA-256: 8304dccbe5246f8faae9a055b5fff2ef928a95ef9e00bc0a482366995c2af511
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to educational content and URLs, suggesting a lure to external resources. The heuristic 'PDF_SEO_LINK_FARM' specifically indicates a mass of external links, reinforcing the attack pattern.

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://summitserviceslv.com/uploads/1/3/0/7/130740389/130740389.html#go+math+grade+2+chapter+2
    • http://federatedassetmanagers.com/uploads/1/3/0/2/130289225/famolunotoveganukupu.pdf
    • http://greenballindustries.org/uploads/1/3/1/1/131164153/0645b204470.pdf
    • http://russellhcarter.com/uploads/1/3/1/3/131383933/2380196.pdf
    • http://molliemoptoppers.com/uploads/1/3/0/4/130491008/a81dfcbbd1b4.pdf
    • http://savagelaughter.com/uploads/1/3/0/7/130739263/6343251.pdf
    • http://emilygruger.com/uploads/1/3/0/6/130640048/6869172.pdf
    • http://federicoealessia.com/uploads/1/3/0/4/130476671/8383199.pdf
    • http://readytogoproperties.com/uploads/1/3/0/2/130291996/7226a81d4.pdf
    • http://dbsmithjr.com/uploads/1/3/0/4/130483276/960100.pdf
    • http://gilchristhomerestoration.com/uploads/1/3/0/3/130323422/130352.pdf
    • http://mtmsmusic.com/uploads/1/3/0/5/130539255/6e9cee88ef30.pdf
    • http://royaltramp.shop/uploads/1/3/0/6/130603888/2706166.pdf
    • http://elisevelasco.com/uploads/1/3/0/7/130738861/duzibabutu.pdf
    • http://homelandsecuritycompany.net/uploads/1/3/0/3/130323337/bodafajoman.pdf
    • http://jherrardhardeman.com/uploads/1/3/0/7/130774964/filanopanibajokal.pdf
    • http://woofnature.com/uploads/1/3/0/7/130776157/eb76e5e.pdf
    • http://sonny5ideup.com/uploads/1/3/0/5/130588779/4070529.pdf
    • http://conference.pfma.org/uploads/1/3/1/0/131069832/nozuno.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_off00005c55.bin
71cab9ffe3b90f837b5f47fd8eb9d77a88132cd50ba8b01392617245f385d32d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C55 6688 bytes

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