Malicious PDF — malware analysis report

Static analysis result for SHA-256 a946c2189a23486b…

MALICIOUS

PDF

47.8 KB Created: 2020-09-16 22:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca5ce111c53afea87224778ab9afa5de SHA-1: c47ee73cb847256a3d84ec34804718a79c37fa53 SHA-256: a946c2189a23486baf2c644f8052cd5fd14e6a7673688c1ad3e60d577ffcbb78
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, forming a link farm. One critical heuristic identified a direct link to a known malicious redirector, ttraff.me, which is presented in the document body as a 'prism tv guide fort myers'. This suggests the document is designed to lure users to malicious infrastructure, likely for phishing or malware delivery. No scripts were extracted from this sample.

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.me/wix?keyword=prism+tv+guide+fort+myers
    • https://cdn.shopify.com/s/files/1/0486/3973/8024/files/96088706426.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pidepuwavulosetanujerepub.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdf
    • https://85862c7b-0239-42e5-ab7b-a2feaf15a975.filesusr.com/ugd/469aea_54ec89704b6e413a8857832c512b35ae.pdf?index=true
    • https://7542d62b-349d-4678-b106-37d1e768d0fd.filesusr.com/ugd/8db125_a6fe482882fd4deca12184103ebf1ea0.pdf?index=true
    • https://910540a2-d7d4-4373-951f-ee51af8cc3cd.filesusr.com/ugd/7dd30d_8f6fb720251341d09067bd959dc7c21d.pdf?index=true
    • https://afa40de7-6b13-4aa8-bd0c-2592515baea5.filesusr.com/ugd/dc6899_ff87508eb3de4ca886b87f16e6c1ccbc.pdf?index=true
    • https://e096b106-66c0-4e0f-8c5e-8e47ef949600.filesusr.com/ugd/3225da_adb4a9318158494c8c163696de2a106a.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/3506/4480/files/27961318370.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/94402189445.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/jefuwikuxuto.pdf
    • https://7d0d9cf0-4626-49fd-9c31-da0c26acd5d5.filesusr.com/ugd/9ea91e_5f444721a8c841bbb84e11545f6110e1.pdf?index=true
    • https://009fb769-e698-4f52-a1b6-72453b8dd940.filesusr.com/ugd/dcf9ad_6702b8a053744341a64ca91a67382fe5.pdf?index=true
    • 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_off00006c9d.bin
219583fc3805cdf4384cb9453088b3855d6ca93c7b565ad2ae0c502a7fbeddcd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9D 5148 bytes
font_01_sfnt_off00007e1f.bin
de5d1345b9ec5fea9637658e6d813a1ba3c1abf2e4e085083e844be8c4bc5f4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1F 17108 bytes