Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d5174124143fbea…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 14:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 412bf6bc0769121a8d1ebaaae17042f7 SHA-1: 29478f2dcb004ea115ad3eb45629a3c2a9d44fb8 SHA-256: 9d5174124143fbeaec92f80e510a5341ff08adc3a6c93e2e01c0549252fedb13
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector. This suggests a phishing or scam attempt designed to lead users to malicious content.

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=relative+clauses+latin+worksheet
    • http://files.hibbingbands.com/uploads/1/3/0/9/130970004/6831771.pdf
    • http://files.villajadisottomarinaapartments.com/uploads/1/3/1/8/131856904/subefozefij.pdf
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/vimirego.pdf
    • https://cdn.shopify.com/s/files/1/0434/1750/1853/files/two_column_cash_book_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7645/files/sarutibulukefegufeba.pdf
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/receiving_clerk_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/bopukawujew.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/80405863569.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/vocabulary_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/introduction_to_categorical_data_analysis_solution.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/lufenokibumanuwol.pdf
    • https://cdn.shopify.com/s/files/1/0437/9371/1261/files/junuforaguvetenek.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_off00005d05.bin
ec0f45c905b2880ba8c5268df8bfbad9c3620254d32179d11f6f5b0465a6eb5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D05 5108 bytes
font_01_sfnt_off00006e78.bin
7f30511a4eb4acd199fa1b12a0bb07a74c56d80e65e1a46b753406a4fb4a20b9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E78 9756 bytes