Malicious PDF — malware analysis report

Static analysis result for SHA-256 335f1badd84739c0…

MALICIOUS

PDF

35.4 KB Created: 2020-09-18 13:42:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f2824eaf18010792b95b66bb3245fcb SHA-1: 45c30cbba3a4671320dc348a1bef1f07e797754f SHA-256: 335f1badd84739c02320d5679c3e03033a7d04d20a8db90e3196be6019c494a3
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.me/wix?keyword=chicano+latino+youth+leadership+project, which is likely intended to lead the user to a malicious site. The presence of numerous other PDF links, including one hosted on cdn.shopify.com, suggests a link farm or SEO poisoning attempt to distribute malicious content.

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.me/wix?keyword=chicano+latino+youth+leadership+project
    • http://files.nanopintechnologies.com/uploads/1/3/2/6/132681513/8415462.pdf
    • http://files.totalmotorcare.co.uk/uploads/1/3/1/4/131438180/8d8ba5bc3.pdf
    • http://files.aglowtheater.org/uploads/1/3/1/1/131163540/8805425.pdf
    • http://gaxuw.californiawestgroup.com/uploads/1/3/1/6/131606183/rulovuv-fazenuvisoni-dowigadiz-bepat.pdf
    • http://jejalo.airoparkourfreerun.com/uploads/1/3/2/6/132683459/4456630.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/26367431717.pdf
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/zalimojalut.pdf
    • https://cdn.shopify.com/s/files/1/0463/3483/6897/files/1520141118.pdf
    • https://42cf622b-617c-4285-b954-72247779e33a.filesusr.com/ugd/07ef24_d756f98578584075b495910deb4bb4bc.pdf?index=true
    • https://167a9623-b76a-4787-9138-0c9e801d8e67.filesusr.com/ugd/8ac1ab_176bb36e90b04cfc9e81fda886397be2.pdf?index=true
    • https://66061a8a-5363-46fa-8d77-1300533d1e65.filesusr.com/ugd/bfbc46_5be9d8e5f2cf437985dcaebc74157014.pdf?index=true
    • https://a3b9f206-665c-4842-a420-7e61ef58dd4f.filesusr.com/ugd/f08e01_3fe1142bfea842a9b2e035d1c1f4c962.pdf?index=true
    • https://99df2887-7b4d-408a-973d-e2a33e1b3ebb.filesusr.com/ugd/1e533a_464c47edd29547c4bfa029183ebbf9a8.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ba4.bin
a0d1a4694d97da9afe6ce60ca5ab172195937ee5f541836eced1d1f3dde7a968		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA4 5244 bytes
font_01_sfnt_off00005d79.bin
e5e05a2d7fe0985e7ec04f06ee0d1ff0cdc097309f64d4b27619e82396c8cadc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D79 10284 bytes

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