Malicious PDF — malware analysis report

Static analysis result for SHA-256 86dc6734d7c7e7f2…

MALICIOUS

PDF

36.4 KB Created: 2020-08-22 21:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75203120bade3fbb55412c60da0dad9b SHA-1: 8349232c8122fc0d3200e9ff1104a76cbad74357 SHA-256: 86dc6734d7c7e7f20e506eafbf0fa67c67d8f8714df2f7fd53c8e35d83f93f42
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at ttraff.com. The document body contains the same URL, suggesting the primary intent is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting.

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=participatory+approaches+to+environmental+management+pdf
    • http://zixexez.bcovolleyball.ca/uploads/1/3/2/7/132741334/kiwinulufan_galevufazisik.pdf
    • http://files.muevetefacil.com/uploads/1/3/1/4/131453253/2ba804e8dead3.pdf
    • https://cdn.shopify.com/s/files/1/0428/5025/5014/files/1867884289.pdf
    • https://cdn.shopify.com/s/files/1/0435/5542/2369/files/nupadezejalazinaguzopep.pdf
    • https://cdn.shopify.com/s/files/1/0428/9436/0743/files/mitura.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/suzibisevim.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4328/files/vonukurujekiwokovew.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/34061283993.pdf
    • https://cdn.shopify.com/s/files/1/0432/5572/6238/files/vomojulodiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/82968275358.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/40042638691.pdf
    • https://cdn.shopify.com/s/files/1/0432/7361/7576/files/ponijasowuxomufegoma.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_off00004ee7.bin
4d0469c39eefd92d9e091f4ab604421ed5a3e93e9e700ca2b04145661e670832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE7 5732 bytes
font_01_sfnt_off00006243.bin
a934bbac8e0d5fb4078b0b6b933489a89e28e074ed716fc956537134f74a4daa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6243 10020 bytes

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