Malicious PDF — malware analysis report

Static analysis result for SHA-256 99bdb6c83cc11289…

MALICIOUS

PDF

46.9 KB Created: 2020-07-18 16:49:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43d1dd23cf4ece80e1ef5bf88316383c SHA-1: 088c3134085940c7c5d1b7088881057f47018532 SHA-256: 99bdb6c83cc112890dccdb4128da9f54b2f9b2b8702f34002440d36419548323
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, identified as a 'PDF SEO Link Farm'. One of these URLs, 'https://ttraff.com/wb?keyword=minarik%20drives%20pdf', is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or malware delivery.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.com/wb?keyword=minarik%20drives%20pdf
    • http://files.raisingbasketballplayers.com/uploads/1/3/1/4/131453394/5497726.pdf
    • http://files.catalinapacificunderground.com/uploads/1/3/1/6/131637774/cd1b04143365080.pdf
    • http://files.ljubaavvakumova.com/uploads/1/3/2/7/132740637/duwigol-fuwojofakek-wabedokatu-duwinu.pdf
    • http://files.brewlabels.net/uploads/1/3/0/7/130776308/48c8fbd2ba110f6.pdf
    • http://files.staceyhernberg.com/uploads/1/3/1/4/131453348/9596287.pdf
    • http://files.molarcubed.com/uploads/1/3/1/4/131406800/perakuwox-gabulag-tojoxafepur-mejuposub.pdf
    • http://files.jhromada.com/uploads/1/3/0/8/130873893/9629baa2c67397.pdf
    • http://files.teethwhiteningmonterey.com/uploads/1/3/2/6/132696335/5cde3.pdf
    • http://files.tilefo.com.au/uploads/1/3/1/6/131637853/2aa64fec3467d22.pdf
    • http://files.anabelskyecreations.com/uploads/1/3/1/0/131070849/7d0af.pdf
    • https://fexowetijuf.files.wordpress.com/2020/06/27932136239.pdf
    • https://vaxasewakup194564274.files.wordpress.com/2020/07/79713425155.pdf
    • https://mabozewunes.files.wordpress.com/2020/06/sininivewiwofajefo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0537/7688/files/webotige.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/jixilaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zadolodiwifunum.pdf
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/28613339857.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/vaduzekibarefek.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/31060035649.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/6029998650.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/daxexojevexavarig.pdf
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/sovofukulew.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bd4.bin
0aa237eb5ea1ced0cd5a86d30e072537ec0daf3fe1676e5bd2bf2877293401f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD4 4732 bytes
font_01_sfnt_off00008bed.bin
e12585fb60758f0be9b7fe8fb6a742d941569f21ad82d9b224ce35acd34932c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BED 9952 bytes