Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7b50711fb53016e…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 00:51:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6fc5f9ecf4aa6d7deeec49366344e0b SHA-1: 353a9b93719bf1a071430353ce39232446c9206b SHA-256: a7b50711fb53016e586b7a162728e993bfa4d45b766a2c181112c15388bc5b5a
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of numerous links, including one pointing to `ttraff.com`, suggests a phishing or malware distribution attempt.

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/pify?keyword=watercolor+brush+stroke In PDF document text
    • http://files.cathysdoodlesandpoodles.com/uploads/1/3/0/7/130740252/xexizifasamus-zojotegedok-pipalep.pdfIn PDF document text
    • http://files.primeadhesives.com/uploads/1/3/0/7/130775628/6966e553dbc.pdfIn PDF document text
    • http://files.pollygreathouse.com/uploads/1/3/0/8/130814065/lararovemolekewuno.pdfIn PDF document text
    • http://files.mikemcmahanlpc.com/uploads/1/3/0/7/130740624/c9a257.pdfIn 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/1/0428/7053/8406/files/tezotuwakamajilumavase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/fotir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/pathfinder_contract_devil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/51566955789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/3869737612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0976/8600/files/dozejinojeriro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/33308474265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/49107376181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9043/4455/files/39470208069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1715/files/xaniragebesirona.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 6

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6035 5104 bytes
SHA-256: 6503dbcbe19837a11089e8cfd730427f524330de691601fab0041812b344325b
font_01_sfnt_off00007192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7192 13480 bytes
SHA-256: 2665e4cef8e72c88f991d412c2d50d970a66ea09537574bad664a0993c920518

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