Malicious PDF — malware analysis report

Static analysis result for SHA-256 db8b8bb7db2132b1…

MALICIOUS

PDF

45.2 KB Created: 2020-09-19 05:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d5323279c49f075d49ef0daf98fbc38 SHA-1: ae0e636c484a21a25edf9debe43d464202a7b93c SHA-256: db8b8bb7db2132b1e8c65471ef1e9c034e6cf98e5376207252d991aa1bbc1b19
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm for SEO manipulation. One prominent link redirects to a malicious URL, likely intended to deliver a payload or phish for credentials. The document body itself contains a lure related to 'Evenflo infant car seat installation without base', which is likely used to trick users into clicking the malicious link. 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.link/wix?keyword=evenflo+infant+car+seat+installation+without+base
    • http://jugunok.alpinevizslas.com/uploads/1/3/1/4/131455328/4a2da8.pdf
    • http://reredi.plastersurrey.co.uk/uploads/1/3/2/3/132303388/0377d8a8.pdf
    • http://rorixe.directaimmedia.com/uploads/1/3/0/7/130776508/6279478.pdf
    • http://files.mynewonline.store/uploads/1/3/0/9/130969887/7048292.pdf
    • http://zipezagi.frankmorrisjr.com/uploads/1/3/2/8/132814838/4692147.pdf
    • http://files.thebuddhasmedicine.com/uploads/1/3/2/8/132814935/nugix.pdf
    • http://files.grroane.com/uploads/1/3/2/7/132740296/f74e6ed72f8.pdf
    • http://files.intensifyyoursport.com/uploads/1/3/1/4/131437834/xidorerogib.pdf
    • https://63c739a6-9d0b-4010-8213-ae4f58b9ddc3.filesusr.com/ugd/895bef_8a7bb03f9353426889743a1753cda31a.pdf?index=true
    • https://20d649de-1878-4614-8314-b0f47948c347.filesusr.com/ugd/185c00_53ad08841473445e8f01ca955e14eff4.pdf?index=true
    • https://c6856924-e6e0-4fb1-b0b6-2697658fc6f2.filesusr.com/ugd/03ae60_8d25859d91e34626b79b722b4153a779.pdf?index=true
    • https://b7042f65-607d-4ade-9c24-2f4b99e93964.filesusr.com/ugd/3801ff_9994afb64d7141209da1e498c8b12ea8.pdf?index=true
    • https://36bd59b1-615a-4dbe-ac8e-5ae6d96d022f.filesusr.com/ugd/c67d0c_0ec4c5c61b4840db90c7e67ca14b0acc.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/patijagajof.pdf
    • https://cdn.shopify.com/s/files/1/0439/2694/5947/files/ciccarelli_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/76513429862.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/file

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658b.bin
1204981faa5baaa027251296b6129a65b9268f456c9502c1807bdda95da75f81
pdf-font-stream PDF embedded font (sfnt) at offset 0x658B 5100 bytes
font_01_sfnt_off000076f0.bin
591ec3314e35d344401a6440895beeb105f6032da5e2ef3e47673388b411b8b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x76F0 10064 bytes
font_02_sfnt_off0000994e.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x994E 4324 bytes