Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e26210fe7191f1…

MALICIOUS

PDF

40.2 KB Created: 2020-08-14 19:17:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7faff3afa8094d485c7616ae61f7e56d SHA-1: 94b6a4ef2647b0fb57d8fcf66e93a855f45bd899 SHA-256: f0e26210fe7191f148170143f98ad92a3ec77584cef87ba0260703bd978c0ebb
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Synonyms and antonyms year 6 worksheet' and embeds numerous URLs, many hosted on Shopify, suggesting a link farm or redirection scheme. The primary malicious URL identified is ttraff.com, which is likely used to redirect users to a further malicious payload or phishing page.

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=synonyms+and+antonyms+year+6+worksheet
    • http://xaruk.happy-pappys.com/uploads/1/3/0/7/130738720/f88922acc1d50.pdf
    • http://files.texaspotofgold.org/uploads/1/3/1/3/131380008/4629f2940feb.pdf
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/megujubinafafuwido.pdf
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/research_article_format.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/51641310488.pdf
    • https://cdn.shopify.com/s/files/1/0432/8348/0736/files/86436028083.pdf
    • https://cdn.shopify.com/s/files/1/0431/5978/1538/files/difilogamuwaje.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/phonics_world_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/26272293102.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jerozex.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/zibebam.pdf
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/past_modal_verbs_exercises_with_answers.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_off00005d16.bin
6611205e2bc2f6200a43a71e9f723c5e29ba54a182e0ad533e88343414634799		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D16 5548 bytes
font_01_sfnt_off00006fd8.bin
e3abf0be7fd352d4fdf97028cd323aff2ed5674449937694b463bec75a739d1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8 10608 bytes

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