Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed84be37651395f6…

MALICIOUS

PDF

40.0 KB Created: 2020-08-07 09:15:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df5be351cdfcf0253a1673b2eeeb5a8a SHA-1: 4d091b22f99e013a4b2e9be32658f4614d824676 SHA-256: ed84be37651395f66a5313b21d29eec888fd8ab31bd5ee7a066b8c5573078da2
130 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a malicious redirector link (ttraff.com) which is likely the primary malicious payload delivery mechanism. The document body contains garbled text, but the presence of the URL and the heuristic firings strongly indicate a malicious intent to redirect the user to harmful content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cetoacidosis+alcoholica+criterios+pdf
    • http://files.projectxlacrosse.com/uploads/1/3/1/4/131409597/6125f0136533.pdf
    • http://files.daragraphic.com/uploads/1/3/0/9/130969357/6718141.pdf
    • http://files.tenstringedlyre.com/uploads/1/3/0/7/130739470/c432e96f204.pdf
    • http://files.jamestrankina.com/uploads/1/3/1/8/131872178/e6891ad099.pdf
    • http://fefifurud.theoptimalageingprogramme.net/uploads/1/3/0/8/130873951/sararuzirafojoza.pdf
    • https://cdn.shopify.com/s/files/1/0435/5925/6232/files/2004_honda_crv_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/91895985900.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/seated_yoga_poses.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0078/files/roris.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6115/files/89127011406.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95936092566.pdf
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/31470219841.pdf
    • https://cdn.shopify.com/s/files/1/0431/8252/2528/files/seiko_watch_finder_by_serial_number.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/tukawavebiduwusifupo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/zazaxewejulumevagufip.pdf
    • https://cdn.shopify.com/s/files/1/0431/3225/6407/files/netogotozad.pdf
    • https://cdn.shopify.com/s/files/1/0439/6387/5486/files/vepat.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_off00005ee4.bin
75556b36bd795382cce60977335a8a5314a10d43b210ab9fd4689a642ba736cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 5148 bytes
font_01_sfnt_off00007058.bin
ccc09c541522ea99f44e45bf292d241549cd988a8bf3bb2556321258156bfafc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7058 10140 bytes