Malicious PDF — malware analysis report

Static analysis result for SHA-256 d93ff7ac7a85c864…

MALICIOUS

PDF

45.5 KB Created: 2020-09-14 00:48:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0348715b1f27169ba3cb7ee9e1f75069 SHA-1: dbefd52393984f006712e0c042c64b7ba5c350cb SHA-256: d93ff7ac7a85c86443af9c3c124d560b374dd4e64bb3edac5fb1cb8eada11114
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.me/wix?keyword=espn+fantasy+baseball+2020`. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to other PDF files hosted on `cdn.shopify.com` and other domains. The document body, though heavily obfuscated, contains references to 'espn fantasy baseball 2020' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of multiple benign-looking PDFs alongside the malicious one could be an attempt to blend in or for SEO manipulation.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=espn+fantasy+baseball+2020
    • http://files.detailkegs.com/uploads/1/3/1/4/131438869/7b3d1768bb.pdf
    • http://files.canadagripsport.com/uploads/1/3/0/7/130776489/kivazujevefo.pdf
    • http://kuzizuwix.keiramichelle.com/uploads/1/3/2/3/132303382/0719c.pdf
    • http://files.wakefieldmiddleschoolpta.org/uploads/1/3/0/7/130740013/doruxolazun.pdf
    • http://rewazu.talkingtomyselfie.com/uploads/1/3/1/1/131164250/kazepufat_sularaxipajiv_vunasejikoxidi_kerusimunopavu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6509/8918/files/github_xpath_cheatsheet.pdf
    • https://cdn.shopify.com/s/files/1/0463/1062/1341/files/96739322271.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7173/files/recognize_text_in_scanned.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/90689732371.pdf
    • https://cdn.shopify.com/s/files/1/0435/1108/7259/files/lipigafamiveki.pdf
    • https://cdn.shopify.com/s/files/1/0437/3689/1557/files/nibasopin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/55138954824.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/26127243215.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/english_words_with_persian_meaning.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006669.bin
ed6cbfffa3548e93f874584b72f16f2c408a2afc22230fb9a8105e7328b3b2fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6669 4900 bytes
font_01_sfnt_off00007724.bin
f5504e3239e5e43458b609d6a960b740cb5f36773d952ba1ce76266dc409a408		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7724 10604 bytes
font_02_sfnt_off00009b55.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B55 4324 bytes

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