Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a06130d708af8e0…

MALICIOUS

PDF

73.9 KB Created: 2020-08-20 18:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fc5a9b503086ba3668060f72cc5d8af SHA-1: 1de4e44a9478ee7798ea6fdef9e3da235f51747d SHA-256: 9a06130d708af8e07a0d6bbd512fad29956abccf296e8c5a1746a30c19b036b1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm, with numerous links hosted on 'cdn.shopify.com' and other domains, suggesting an attempt to distribute content or lure users. The document body, though heavily obfuscated, contains the same redirector URL. No scripts were extracted from this sample.

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=bowel+obstruction+pathophysiology+pdf
    • http://files.mgfundraiser.com/uploads/1/3/1/3/131382982/vulirezuti-koretuxeseg-leravilir-vofodenenumo.pdf
    • http://files.youthengagementplanning.org/uploads/1/3/2/6/132682564/7421748.pdf
    • http://files.dublinwoods.org/uploads/1/3/1/3/131383698/6991fb7bace17.pdf
    • http://muliwi.priorlakeboatstorage.com/uploads/1/3/1/1/131164312/gavazupoza.pdf
    • http://files.holapostpartum.com/uploads/1/3/0/9/130970005/12739.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/endocardite_bacteriana_odontologia.pdf
    • https://cdn.shopify.com/s/files/1/0434/1451/9973/files/11189326147.pdf
    • https://cdn.shopify.com/s/files/1/0435/7616/4515/files/college_algebra_blitzer.pdf
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/wuvutaruwofutenitaman.pdf
    • https://cdn.shopify.com/s/files/1/0437/0844/8922/files/bomuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/543351496.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/bovarenawojedokujebarun.pdf
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/college_loan_calculator_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/pepivil.pdf
    • https://cdn.shopify.com/s/files/1/0433/8024/4643/files/17295194011.pdf
    • https://cdn.shopify.com/s/files/1/0435/7029/9048/files/kindle_reader_alternative_android.pdf
    • https://medlineplus.gov/intestinalobstruction.html
    • 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_off0000dc19.bin
4e9ca776393d2915337ea2193484d5720513fc2148ab6a2176b4b8ce3d426a84
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC19 5800 bytes
font_01_sfnt_off0000efe7.bin
eca4ca894c07b9985899277b0242d58929ca7c8a2daf6d7dad91cf5093ccd1ac
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE7 13304 bytes