Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae8d6d09a9570c1c…

MALICIOUS

PDF

45.8 KB Created: 2020-08-08 12:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56e3db35ccaabc9957c63b23306cc5fe SHA-1: 46a113d7e79c3ea8bfaaedd6585f391dd177a350 SHA-256: ae8d6d09a9570c1c8de7ba5a9ab3c95fb6e8ab89811825ce082fef2e7a0cccb7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external websites, a technique often used for SEO poisoning or to redirect users to malicious content. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wb?keyword=vlan%20trunking%20protocol%20configuration%20pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise malicious links within seemingly legitimate 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.com/wb?keyword=vlan%20trunking%20protocol%20configuration%20pdf
    • http://rizebuwon.noroydesign.com/uploads/1/3/0/7/130738799/webezuladubupuserek.pdf
    • http://files.fymandco.com/uploads/1/3/1/3/131381782/0e311.pdf
    • http://files.aroundandbackagain.com/uploads/1/3/0/9/130969768/bogutaposeman.pdf
    • http://rivakara.businesssolutionsbydesign.com/uploads/1/3/1/1/131163635/8644589.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/deleting_commits_github.pdf
    • https://cdn.shopify.com/s/files/1/0438/6449/0149/files/tinkle_magazine_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/6716/2276/files/suxivogulisazopidapoja.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8167/files/4650416598.pdf
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/vizowef.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/ruborojubo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2592/4249/files/pebavadatafijekolufiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/25453131045.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/dumemagubub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69651331918.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/laloju.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_off00006cd8.bin
a0a7ac9766e4f7ea4b72f03aee57aba3711ba558fbd68156ecf5087488a7b67b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD8 5172 bytes
font_01_sfnt_off00007e8d.bin
3b9a7ba15cde249f94b3b1c3d388a2724f05fc4d6ca1b0ad8fdf30a5753c63a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8D 14068 bytes

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