Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e2716940e38c5d…

MALICIOUS

PDF

51.7 KB Created: 2020-08-12 11:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b9e45ef6fc4ab23a487a7caea4b0f34 SHA-1: b2d8d5085a78b454794af50cc7f7da790abd4963 SHA-256: 93e2716940e38c5d6ea6970b4772aa376ca4a260201961643f3340d04ccd764d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a common tactic for SEO link farms. One of these links, 'https://ttraff.com/pify?keyword=atkinson+shiffrin+model+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify URLs, suggesting a lure to a malicious site. No scripts were extracted, but the PDF structure and embedded links strongly indicate a redirection-based attack.

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=atkinson+shiffrin+model+pdf
    • http://files.snapzphotobooth.co.uk/uploads/1/3/1/4/131413040/xusavewumuxa.pdf
    • http://wuwuk.wmeyer.com/uploads/1/3/1/4/131482995/zinadifapomekuwuke.pdf
    • http://letoxu.jpzproducts.com/uploads/1/3/0/8/130814328/2ba329.pdf
    • http://files.peacefullivingfarms.com/uploads/1/3/2/7/132740594/043d84d4d.pdf
    • http://zivolami.44frequencies.com/uploads/1/3/0/7/130775448/zusogifagi-jozizutoji-novonetukud-gejotolu.pdf
    • http://letoxu.jpzproducts.com/uploa
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/80638769471.pdf
    • https://cdn.shopify.com/s/files/1/0432/2813/5592/files/bamizizupidonav.pdf
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/nnat_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/rewezagijux.pdf
    • https://cdn.shopify.com/s/files/1/0429/2663/7223/files/gente_toxicas_libro.pdf
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/lilaliripojonasozovasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/82991699521.pdf
    • https://cdn.shopify.com/s/files/1/0438/4882/7040/files/25854664187.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9944/files/95563715303.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/95667014409.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/33844200404.pdf
    • https://cdn.shopify.com/s/files/1/0436/4432/1945/files/algonquin_park_map_canoe_route.pdf
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/fat_loss_forever_layne_norton_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2611/9831/files/50109537146.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_off00008d8b.bin
06305c976c22be23e54745db681e86eaea33e1cf52687a0eced45a5dd07a6f1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8B 5124 bytes
font_01_sfnt_off00009ec9.bin
354bea6e959fad2317faed03217715eae88dda944ae952b88ffefc2a20b048e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EC9 10120 bytes