Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a9c464a9ea9099b…

MALICIOUS

PDF

49.4 KB Created: 2020-08-21 11:38:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f6c01826bde26e8d6ffb8fb1161e945 SHA-1: 421f73ced1da69acd1ead016508707fc6f9248a2 SHA-256: 9a9c464a9ea9099b9487c7b8d35be2aff129a16e4221d7c1985a593d2adcae30
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to ttraff.ru, masquerading as "Braveheart score sheet music". This indicates a link farm or phishing attempt designed to redirect users to malicious content or download further payloads. The document body is heavily obfuscated and contains embedded URLs, reinforcing the malicious intent.

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.ru/pify?keyword=braveheart+score+sheet+music
    • http://files.jillshooktherapy.com/uploads/1/3/2/7/132711947/fuputamokuneratipot.pdf
    • http://juzad.crismarin.com/uploads/1/3/0/7/130776394/kewis-nelumumuvenaku-kujuzazis.pdf
    • http://files.archerygolfwi.com/uploads/1/3/1/4/131454024/wifadobi-fifowiz-nozonepujub-kokidej.pdf
    • http://nuxuki.casasanimalshelter.org/uploads/1/3/1/4/131453540/5315806.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/5128616085.pdf
    • https://cdn.shopify.com/s/files/1/0438/5302/1334/files/95442377709.pdf
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/buvowotiragafanodovet.pdf
    • https://cdn.shopify.com/s/files/1/0437/1087/3750/files/diphenoxylate_davis.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/49101270306.pdf
    • https://cdn.shopify.com/s/files/1/0436/6109/9161/files/brush_script_std_free_font.pdf
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/52909134949.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/lowes_campbellsville_ky.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83406059157.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_off00004641.bin
ab36d7c28170ef6740380b7164f5142715473401073f8be89a8f038ff178e693		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4641 20376 bytes
font_01_sfnt_off0000855f.bin
12c73b0476df3f0da925878e52cd9d5034f24d0d7265c4d5ad54de36f10f0ec0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x855F 5116 bytes
font_02_sfnt_off000096a4.bin
6f2ed00892d9a2e85e98387786e5481183570abba81b4de3e6776e2cd60280c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96A4 9908 bytes

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