Malicious PDF — malware analysis report

Static analysis result for SHA-256 a50a08452877128f…

MALICIOUS

PDF

45.2 KB Created: 2020-08-30 11:50:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4188640cb01c03f891dca157f5b498e8 SHA-1: e53168d9393b606608a156a1912c9efc8cc4c552 SHA-256: a50a08452877128fed29b087e58e664b21f8de10771c8b01901b732b8ab745cb
194 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 resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=cp+online+codes'. Another heuristic flagged the document as a PDF SEO link farm, indicating a large number of outbound links designed to manipulate search engine rankings or direct users to malicious sites. The document body contains obfuscated text and references to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=cp+online+codes In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6968/5414/files/wovoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/wevajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15843942414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3557/files/mivozarujeniwime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7727/9652/files/wumuvidebosako.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e5a943_4c6608942cd841a8bd795806040e96b8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_30f7a97e22874a8caf9607b2b82ccff8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4d400c_ee3b1d146ae54bd2bfa4fe0d6e616693.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_fa1f752720434b9f9ac4a1fb941376a8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bc0c09501566483c8e1fd7778dd6472b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_4ab9fea6b2844dde98454f9542b0f382.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/34ec99_baa6d7a2ad3f4f048bc07cae781cfbd3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/10a4aa_e57a29d2adad46ec9db9f7414ddaa036.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6667 3652 bytes
SHA-256: f645e3cca9a222508620063c94c5a2fc4336383c1648a6cdcd63e185a357787a
font_01_sfnt_off00007377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7377 4668 bytes
SHA-256: 03d5d1f2bf43e02f2f026b19ac08923b252201e23d1d2fb86987664679b25142
font_02_sfnt_off00008360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8360 10652 bytes
SHA-256: 0affc6b2f4b3fa77e75fa57c7990c97c785495f0e62e29e76c2cb8616b67aa71

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