Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ede8afde9843ea3…

MALICIOUS

PDF

50.1 KB Created: 2020-09-01 09:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba04354ff80dda7b289ad3eeac216cb5 SHA-1: 5533d014ad716d48cebf27c70d7c39d202d4e742 SHA-256: 6ede8afde9843ea3c1ed24f6e911032b6b8e73868f7e06b1ed168132372f4b10
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, 'https://ttraff.com/wix?keyword=jet+programme+application+guidelines', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Jet programme application guidelines' and also includes the malicious URL, suggesting a phishing or scam attempt. The presence of numerous other PDF links, many pointing to Shopify, indicates a potential link farm used for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=jet+programme+application+guidelines
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/vofelajutotametos.pdf
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/76996849891.pdf
    • https://cdn.shopify.com/s/files/1/0430/5823/3493/files/74561401481.pdf
    • https://cdn.shopify.com/s/files/1/0439/3825/0910/files/employee_comments_for_self_appraisal_form.pdf
    • https://cdn.shopify.com/s/files/1/0461/3501/7625/files/invoice_template_with_vat.pdf
    • https://cdn.shopify.com/s/files/1/0430/8356/3162/files/cours_d_orthographe_franais.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/gowan.pdf
    • https://static.usrfiles.com/ugd/d54300_65b998d0416d40dda0e03dac2bfeabaa.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f6e0a5b89b14037a7c44b6d91043543.pdf
    • https://static.usrfiles.com/ugd/405339_3d8dc260363349c08fcd34abc0e5972d.pdf
    • https://static.usrfiles.com/ugd/10e3af_b19173f8a02645eeb6c3313037f40c87.pdf
    • https://static.usrfiles.com/ugd/f515ca_70218b01ab9348dfb4b4a67ea34cf6c3.pdf
    • https://static.usrfiles.com/ugd/b50c55_496fffd1e20841919fcfead07de4cf14.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_c00674c88c3e410cb3874402157105e3.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000846e.bin
8914d812fe88bb9ce6d4a4c225e62b47d4daec3e0009a876a1fd84f0755afcaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x846E 5380 bytes
font_01_sfnt_off000096a3.bin
65efc4c5c000e35785676f7d44c5dd15ada6653c3c945a57629f97d0f3be2f7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96A3 10888 bytes

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