Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ee8e4c19021dd3…

MALICIOUS

PDF

45.5 KB Created: 2020-09-17 11:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 519099991331c1879e6e3930d4ae0df8 SHA-1: 8874ad1753aeedd048f0151ab76d65f0510d8924 SHA-256: e9ee8e4c19021dd388d06029f5e02a297fe3de4cb3ac9fc72f8a804aaa700703
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One prominent link, "Earth science review crossword answers", redirects to a malicious URL. This suggests the document is designed to drive traffic to potentially malicious sites, likely for SEO poisoning or phishing purposes. No scripts were extracted, limiting further analysis of payload delivery.

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/pify?keyword=earth+science+review+crossword+answers
    • http://files.gdevansinteriors.co.uk/uploads/1/3/2/7/132712315/kakajipatoxi-poridavalov-razojumi-tagidu.pdf
    • http://pedomefi.redlineinstallers.com/uploads/1/3/2/6/132680981/jojufunijovowewobu.pdf
    • http://files.artbyhelmi.com/uploads/1/3/0/9/130969426/gofadoro_vojalimubewoto.pdf
    • http://files.french-australian-lawyers.com/uploads/1/3/1/0/131070920/5a1285dfa23.pdf
    • http://files.defy-foundation.org/uploads/1/3/0/8/130874050/xobadabemobew.pdf
    • http://tumil.sunflowergenetics.com/uploads/1/3/0/7/130775493/juxesibejabuf.pdf
    • http://ranifoda.nicolewellner.com/uploads/1/3/1/0/131070291/warupe_gedakipopopa_xogemujanutavot_joxodanewoxo.pdf
    • http://kijuz.eastsidecoc.com/uploads/1/3/1/4/131438759/jitiwef_duselijozun_zopizat_togenilebimoxi.pdf
    • https://cdn.shopify.com/s/files/1/0457/5061/6220/files/loselomebenoripaxakiro.pdf
    • https://cdn.shopify.com/s/files/1/0429/2204/9695/files/28181970688.pdf
    • https://cdn.shopify.com/s/files/1/0431/9736/6436/files/siluni.pdf
    • https://cdn.shopify.com/s/files/1/0430/8205/5829/files/fumelevilerozodonokutimaf.pdf
    • https://cdn.shopify.com/s/files/1/0438/2618/4352/files/70431573823.pdf
    • https://61460fdd-c03a-4193-83f2-17dbbd07d27e.filesusr.com/ugd/15ebe2_43778889d4af48349325dcffbb9c4fbb.pdf?index=true
    • https://1cb36651-6410-4348-a83b-73fa1f371b31.filesusr.com/ugd/834936_e646712827ef4fc2a568a587e1540f46.pdf?index=true
    • https://5e69b4c8-68d0-44b6-a7fd-7dd5c26b0212.filesusr.com/ugd/ee9d3f_463f67fb1da3415093aa49a4297484df.pdf?index=true
    • https://0d758161-e1d4-4560-a359-6af0d6072024.filesusr.com/ugd/81d6a4_a088eaac55cd4c2ca9d43e73e58061ed.pdf?index=true
    • 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://0d758161-e1d4-4560-a359-6af0d6072024.filesusr.com/ugd/81d6a4_a088eaac55cd4c2c

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074b7.bin
62b284e4a47d389ebb252c2fe11d226714023dbcc394807173e0533122d8fe6e
pdf-font-stream PDF embedded font (sfnt) at offset 0x74B7 5104 bytes
font_01_sfnt_off00008624.bin
c652ac48b0dc6b296a06380ac8facc1378bfcbfe0d5a9396da4b48a55df1d661
pdf-font-stream PDF embedded font (sfnt) at offset 0x8624 10192 bytes