Malicious PDF — malware analysis report

Static analysis result for SHA-256 38c541d0d2b054de…

MALICIOUS

PDF

46.0 KB Created: 2020-09-07 13:47:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a742357ab0b8044fa837153ef5a1932 SHA-1: dc05e5c16d329a505ecc589387c38e706e7ac412 SHA-256: 38c541d0d2b054dec023b5f02105d9b00f030e80a3cca1957f71630fe320d656
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, 'https://ttraff.me/pify?keyword=ellie+taylor+mash+report+pregnant', which is flagged as malicious. The document body, though heavily obfuscated, includes this URL and a benign-looking PDF filename, suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly indicates maliciousness.

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.me/pify?keyword=ellie+taylor+mash+report+pregnant In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/74c34a_bd98fb45770b475cb121a9d25603fa26.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d48fe3_6fb379b895ec4d8e9f2ee1fc12676bd4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/963627_0c8187068f9445868280f4836ba716c9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/20d83a_bfe9e6b9b74844c9a50f76820c157a35.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3057/2190/files/alto_professional_ts215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/vesaxunizez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/3_on_3_basketball_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/33870134414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/papilewom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1773/1229/files/le_cercle_de_la_forme_lecourbe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5324/files/verificacion_de_cfdi.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 4

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_off00006a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A95 3184 bytes
SHA-256: 97560ea701d480278f5160e3bc33b12ae9d8068c721827351261d2cd488cf2c5
font_01_sfnt_off000075ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 5292 bytes
SHA-256: 002420440182b87465be74fb56be75f20ea6bf3686d09e924b81807c3588fc56
font_02_sfnt_off000087ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CE 10256 bytes
SHA-256: 4dd2659697327ab9600c219740c5bdcdc9b9fae0dee4ef47a63dd13d957dc0eb

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