Malicious PDF — malware analysis report

Static analysis result for SHA-256 52dc952f68525466…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 22:03:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7079fdb100dc67f42051b4752249daa8 SHA-1: fb60a478d46f69c8e65a040aee46cf655d0b8650 SHA-256: 52dc952f68525466f22c65ddc446664ebd461f12ed71c63364659e8a27771fd8
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the URL and appears to be a lure for 'Age of Sigmar Bretonnia PDF'. The primary attack pattern involves redirecting users through a link farm to potentially malicious content. 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.com/pify?keyword=age+of+sigmar+bretonnia+pdf
    • http://files.atcentershop.com/uploads/1/3/0/8/130814227/xewaxabebup-dines.pdf
    • http://rozelaw.ventnorbeachrental.com/uploads/1/3/0/7/130775897/048312.pdf
    • http://wovozezup.literarycats.com/uploads/1/3/1/4/131453109/7e380792607a.pdf
    • http://files.kickswim.com.au/uploads/1/3/0/7/130739883/3638683.pdf
    • http://files.richmondcountylittleleague.com/uploads/1/3/1/0/131070518/5904407.pdf
    • https://cdn.shopify.com/s/files/1/0431/2963/4970/files/25683389316.pdf
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/59327148630.pdf
    • https://cdn.shopify.com/s/files/1/0431/6495/8879/files/seagate_disc_wizard.pdf
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/68622197360.pdf
    • https://cdn.shopify.com/s/files/1/0437/1641/1547/files/jefetotomef.pdf
    • https://cdn.shopify.com/s/files/1/0444/1961/2839/files/dixig.pdf
    • https://cdn.shopify.com/s/files/1/0429/0635/3823/files/algebraic_formulas_for_class_10.pdf
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/eye_bolt_standard.pdf
    • https://cdn.shopify.com/s/files/1/0434/8739/6004/files/korean_alphabet_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4827/files/78309016269.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5290/files/convert_to_jpg_linux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/algebra_for_college_students_robert_blitzer.pdf
    • https://cdn.shopify.com/s/files/1/0436/9462/0837/files/buzadurezedereguzuzi.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_off000072f4.bin
2febccf629aa5cef66f42ceee80eef2cdbac64e84f494e2a833b58f8e27943d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F4 5456 bytes
font_01_sfnt_off00008566.bin
792475a7b82ea810ed7af8d7f9fce3e6c5c74022fec78551afcbd3d4edb94c12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8566 10300 bytes

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