Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa69cae68aa8a841…

MALICIOUS

PDF

45.7 KB Created: 2020-08-30 06:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d8827e9a4cfb9b1227a787d9632320e SHA-1: 402ab8b33b16b0411035247b5a985a4a670ae162 SHA-256: fa69cae68aa8a841a132b5590999cfc25129f1f4c7a5d71f2ed93b0fe33f5ee1
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is disguised as a coin collecting merit badge guide. The document also contains a large number of links to Shopify-hosted PDFs, likely part of an SEO spam campaign to drive traffic to the malicious redirector. No scripts were extracted from this sample.

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.club/wix?keyword=coin+collecting+merit+badge
    • https://cdn.shopify.com/s/files/1/0438/9653/7243/files/50937450683.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/d_d_5e_spell_compendium.pdf
    • https://cdn.shopify.com/s/files/1/0434/0714/7157/files/montana_assumed_business_name_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/5th_grade_math_addition_word_problems_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/cara_menggunakan_breast_pump_manual_pureen.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/list_of_bewitched_episodes.pdf
    • https://cdn.shopify.com/s/files/1/0429/0753/3475/files/mekanukegen.pdf
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/womigawavanaji.pdf
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/slow_cooker_revolution.pdf
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/61982643292.pdf
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/suxiwiladil.pdf
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/dipewonumov.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/80993630618.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007552.bin
3711ed867dcceff3ad6e28b5186b2e2a4e0bb03921213b7a479d9f22a0c5560b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7552 5124 bytes
font_01_sfnt_off00008695.bin
8813842d57e5a641bc9b646fc2e0c7e86aceee8cfe65cb7c2f92d7563b6517cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8695 10496 bytes

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