Malicious PDF — malware analysis report

Static analysis result for SHA-256 57bcb5814d865596…

MALICIOUS

PDF

38.0 KB Created: 2020-07-28 19:02:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 932142b9701375070c450c426c6fe4d9 SHA-1: a4d78e6b9d519330ba842696b8b31aa877645d3a SHA-256: 57bcb5814d8655966b34eadfffac26424978002776a0c2ad4037af7c8fe506ff
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify-hosted PDFs. The document body, though partially corrupted, suggests a lure related to 'Keysight infiniium oscilloscopes programmer's guide', indicating a potential phishing or scam attempt.

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/pify?keyword=keysight+infiniium+oscilloscopes+programmer%2527+s+guide
    • http://files.gillsaul.com/uploads/1/3/0/7/130775806/boketatinagaje.pdf
    • http://files.saintisidoresalpacas.com/uploads/1/3/1/3/131379306/2854da395b2f91.pdf
    • http://files.k9justincase.com/uploads/1/3/1/4/131438427/036235f05.pdf
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/64504431512.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3398/files/21051957069.pdf
    • https://cdn.shopify.com/s/files/1/0437/1664/0917/files/55153727536.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/gelonenotifonadu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4859/8678/files/20960250757.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/50600090395.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/67896128683.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/15671206790.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/7612097292.pdf
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/laraviketofo.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/
    • https://cdn.shopify.com/s/files/1/0429

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000587b.bin
40cfbd5d56a6b1054f7d006fe95b5b8313b662768c7d05b57292f6e99441132f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x587B 5556 bytes
font_01_sfnt_off00006b3f.bin
414014b4e126f6bdd5e07f24fc02cb46fa8c6625e14e08fd33f3bf492d711ece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3F 9260 bytes

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