Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e07f521491cda03…

MALICIOUS

PDF

42.3 KB Created: 2020-08-25 22:16:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 260910cc1c38a8af51ec5e15646a1a0b SHA-1: d4fbd2227234a95d93276acb4595c92236a582ae SHA-256: 6e07f521491cda034fc4ac072c0a65d972f27b1ab480279321bc9b9e37ad48f8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=bashar+blueprint+for+change+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to direct users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to disguise the malicious intent. No scripts were extracted, but the overall structure and malicious URL point to a phishing or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bashar+blueprint+for+change+pdf
    • http://files.hemingfordharvestmoonfallfestival.com/uploads/1/3/0/9/130969431/lilujoboj-vewefine.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/55406591376.pdf
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/garita_el_chaparral_reporte.pdf
    • https://cdn.shopify.com/s/files/1/0430/6698/2561/files/wewop.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/xobojixosowovakumilas.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lebalod.pdf
    • https://cdn.shopify.com/s/files/1/0462/7254/4917/files/aim_full_form_in_retail.pdf
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/84523656100.pdf
    • https://cdn.shopify.com/s/files/1/0430/7533/8389/files/teorias_e_abordagens_da_administrao.pdf
    • https://cdn.shopify.com/s/files/1/0431/3959/6454/files/vatican_news_app.pdf
    • https://cdn.shopify.com/s/files/1/0436/1915/6130/files/84344343538.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000593f.bin
8f03cb52cc30c6be284ca8fa64681e37fba015b3ee9683832cd9e1657ebaa116		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593F 5488 bytes
font_01_sfnt_off00006bce.bin
5b75abdf912086676d74a04c3ef3834975f8e8c4e080f22ab244dccda5757bce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCE 10192 bytes
font_02_sfnt_off00008eae.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAE 4324 bytes

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