Malicious PDF — malware analysis report

Static analysis result for SHA-256 37a3e3101ed12282…

MALICIOUS

PDF

37.4 KB Created: 2020-08-19 18:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6549ad43777eaca695a45e7b4e087bcf SHA-1: e1742b07842b3711d665b848439e93616113b312 SHA-256: 37a3e3101ed12282c8c2075109fbb562d2d10312f0c851cca562443324e4bd13
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=kingspan+raised+access+floor+installation+guide'. This URL is likely used to redirect users to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted from this sample.

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.ru/pify?keyword=kingspan+raised+access+floor+installation+guide
    • http://sesis.ubertile.com/uploads/1/3/0/8/130874240/fotawavu.pdf
    • http://xapim.vickiegeorge.com/uploads/1/3/0/7/130776031/3773544.pdf
    • http://getuwafel.cbmbc.org/uploads/1/3/2/7/132740720/fedusefip_pasowiz_loxejodizu_pajebofapubam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9753/9231/files/sheet_straps_bed_bath_and_beyond.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/navabolulib.pdf
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/analytic_hierarchy_process.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdf
    • https://cdn.shopify.com/s/files/1/0430/4365/1741/files/template_ppt_simple_elegant.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/vigowejabutidavumasasipen.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/kuxam.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/doxufimexovobivugebep.pdf
    • https://cdn.shopify.com/s/files/1/0437/0530/3205/files/41770387980.pdf
    • https://cdn.shopify.com/s/files/1/0431/1462/7234/files/acetanilide_msds.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/suresekusesuzemeranet.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/bevezuzamo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1130/8696/files/92721303646.pdf
    • https://cdn.shopify.com/s/files/1/0435/1806/6842/files/bekuxudigal.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_off00005530.bin
29d056cafe5e0a69677513df830bbac1c4f5d8beac5a1920ac395d3cfe648a4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5530 5292 bytes
font_01_sfnt_off0000673a.bin
5867cb5266d69d60c6f44edcf8bd20c0e34861df1aae7e9f1a2b9d15236b2ca0
pdf-font-stream PDF embedded font (sfnt) at offset 0x673A 9728 bytes