Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6de1d3d9576943…

MALICIOUS

PDF

59.3 KB Created: 2020-08-29 03:12:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82229059f5b37ab31e6c53e2a0475997 SHA-1: c50ff397738ada0cc25f5de6a5fde6b95c7d15e5 SHA-256: 0d6de1d3d95769436bd2f12e5c9a835026d41347b54b667deccbba5ffafd453c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains. One prominent link, 'https://ttraff.com/wix?keyword=lady+midnight+book+2', is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to direct users to potentially harmful content, possibly for phishing or SEO poisoning. 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.com/wix?keyword=lady+midnight+book+2
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/3832/4374/files/boxisuvemosa.pdf
    • https://cdn.shopify.com/s/files/1/0428/0378/9991/files/zusufutajobofokureliruxof.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/vukevubifevaki.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f3a30c779d64caa82f7c8d520bb5d73.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f61249fa6624d07845a4c39966fb93e.pdf
    • https://static.usrfiles.com/ugd/b8c837_2a1dcee903664deeb25f85924ca5adc6.pdf
    • https://static.usrfiles.com/ugd/b8c837_b60745ba57ee4fd8acdf294bf668ee1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_a95cb3f7f47444498a6b5c4cf87de379.pdf
    • https://static.usrfiles.com/ugd/b8c837_35431618468f40e199a66c015d758c6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_98999d05c9434b8fb7a634a0e4bb6b43.pdf
    • https://static.usrfiles.com/ugd/b8c837_675826b6c0e14a5c887689b8dad0a5f5.pdf
    • https://static.usrfiles.com/ugd/b8c837_32e17859efe84569b320a1a9966ec6cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbb400a36ca84a078d6a91bcc7b9d5d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_345162eb8cd841059827dcb328f2ac6c.pdf
    • https://static.usrfiles.com/ugd/b8c837_623b77815142466584cc69fe5b4dead3.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9284648f0674d97873414254bab00d0.pdf
    • https://static.usrfiles.com/ugd/b8c837_86313ea7cb184f0ea31e33c1249df491.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7e2ed379c2d4a73964be2ed66dd4f5c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab60.bin
12baa0e11649c425f49b4b189e7fb8ddb810aeb790993ca698c04f10ca8cb5e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB60 5312 bytes
font_01_sfnt_off0000bd56.bin
2821fbc6e4ba368d174a2e91edc5a25e4c37515234125387c3db58d85d5bbf15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD56 10640 bytes

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