Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e9768c448c871e…

MALICIOUS

PDF

39.4 KB Created: 2020-08-18 21:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a67f362419b2bb2c11a0a68e237bda SHA-1: a720f4acb1a556ea8f7d72ec3581d52995dac330 SHA-256: 76e9768c448c871eabb15f481daa31f73bf74a422bc3dcd595a870f0ac5de594
150 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a link farm. The primary malicious URL, https://ttraff.com/pify?keyword=case+law+definition+pdf, is likely used to funnel victims to a phishing or malware site. The document body, though heavily obfuscated, contains references to the redirector URL, reinforcing its role in the attack chain. The presence of numerous external links, many hosted on Shopify, suggests an attempt to create a broad lure or distribute content through seemingly legitimate platforms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=case+law+definition+pdf
    • http://files.hamsforchrist.com/uploads/1/3/0/7/130740465/xobug.pdf
    • https://cdn.shopify
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/17319175836.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/73627669371.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5509/files/fefazubazilenized.pdf
    • https://cdn.shopify.com/s/files/1/0428/9639/2348/files/loviveduvetirudovi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vatajimawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0663/9779/files/13265445472.pdf
    • https://cdn.shopify.com/s/files/1/0437/5383/2609/files/64836068392.pdf
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/87621892214.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_off00005c46.bin
6d91c8a32203359055c1fb2fab62f973d329096dcf95f6189634eca2d8d8fe7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C46 4936 bytes
font_01_sfnt_off00006d37.bin
57c7d53fbbe8893e86a45b32fff070a2f435c1a08b8651ced2760415f096bb4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D37 10040 bytes

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