Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaab282e85fbc205…

MALICIOUS

PDF

46.0 KB Created: 2020-08-17 00:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 623019dd4f39b2e2973b2472ef24194b SHA-1: b3447ded5dae3cddb40eb53fa5b242e467dc05e7 SHA-256: eaab282e85fbc2052318920f9705be52dd808857e04ce54019614822c5b1c600
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to "Brazoria county tx police reports" and the URL itself, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting a malicious intent to redirect users. The primary malicious IOC is the redirector URL.

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.cc/pify?keyword=brazoria+county+tx+police+reports
    • http://files.oskie.net/uploads/1/3/1/0/131071157/muvekugifunefukumes.pdf
    • http://files.pegishaplace.com/uploads/1/3/0/7/130739163/5ac9ac.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66691602327.pdf
    • https://cdn.shopify.com/s/files/1/0433/8437/3406/files/baal_veer_ki_video_3gp.pdf
    • https://cdn.shopify.com/s/files/1/0447/0757/8009/files/abdul_kalam_speech_in_english_for_students.pdf
    • https://cdn.shopify.com/s/files/1/0433/4498/6262/files/advertising_media_planning_a_brand_management_approach.pdf
    • https://cdn.shopify.com/s/files/1/0429/2519/5427/files/pdf_calendar_template_november_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/9843/7784/files/46408162235.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/99282303285.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_off00006885.bin
5f45b7bbb648ec3cf704fd5ef2991a8e24d92ecb429985d481abefad2167adac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6885 5080 bytes
font_01_sfnt_off000079ed.bin
310f58ca8cfac4050a576df3048dc89efdf68c28d19e97ff344a354fca394f6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79ED 10416 bytes
font_02_sfnt_off00009d7d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D7D 4324 bytes

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