Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0e97bd721748f6…

MALICIOUS

PDF

40.3 KB Created: 2020-08-01 09:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a39eb2e985d7f98cae63559ca2e41cd9 SHA-1: 3790bd975f0f0ab698429cd64a82e7454c17daae SHA-256: ed0e97bd721748f66a263b2973115136b172147265981b4894ef5717a74ca1c2
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, a technique often used for SEO manipulation or to distribute malicious content. One critical heuristic firing indicates a link to known malicious redirector infrastructure at 'ttraff.com'. While many other links point to benign Shopify-hosted PDFs, the presence of the malicious redirector and the sheer volume of links suggest a coordinated effort to drive traffic or distribute further payloads. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=phoenix+arms+hp22+problems
    • http://files.connectaccounting.co.uk/uploads/1/3/1/0/131071167/6d2a9f6b01.pdf
    • http://files.athenas-owl.com/uploads/1/3/1/3/131378975/f73489e38c.pdf
    • http://files.zwittyultra.com/uploads/1/3/1/6/131637074/pajatolilu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/42788535940.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/periodic_table_of_elements_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/9693/2501/files/lokepunan.pdf
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/sinezisevagetigajifuwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/bokipasete.pdf
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/9309135480.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zabaravoxetifup.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/doluzomikegikesoki.pdf
    • https://cdn.shopify.com/s/files/1/0435/6472/8483/files/lofegupirebijapuwetiluk.pdf
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/jivanujosedimerubozagoxu.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_off00005f55.bin
78483b4b9b3c090b1b153a49c8590eb52416704080795a99111e39bd5de9047c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F55 5400 bytes
font_01_sfnt_off00007188.bin
740de10efd1c0f3087b7447aec34e382046f725394d1f221bbbf51f4ec0f93f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7188 10284 bytes

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