Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf4e58e2135f37c5…

MALICIOUS

PDF

68.6 KB Created: 2020-08-23 03:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 293616e0eea6b34eb1ff62323e6f008c SHA-1: 35e071d64b4fcf28263cc90afbf88bb2661ff371 SHA-256: cf4e58e2135f37c5d340535c28757c08bc76c01e7ef85214a1508d6984bb1211
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting the primary intent is to drive traffic to this malicious site. 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.com/pify?keyword=abap+sap+certification+questions+answers In PDF document text
    • http://files.spotsycofchrist.com/uploads/1/3/0/9/130969960/621ad079aec4.pdfIn PDF document text
    • http://filimon.fourthchurchfamilies.org/uploads/1/3/1/4/131453494/3395763.pdfIn PDF document text
    • http://nalumo.riccardopes.com/uploads/1/3/0/8/130814328/386978ebf23ca4.pdfIn PDF document text
    • http://files.usapl-ct.com/uploads/1/3/1/8/131856276/3580882.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/1/0438/8667/4088/files/62796220910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/aggiornamento_android_10_honor_view_10_lite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4686/9911/files/30578213360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0899/9072/files/mckinsey_casebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/81515617065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/zuromuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/nirezodiwatonibopep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/zimixubugajanijesum.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF14 5324 bytes
SHA-256: 5ad7535ab19619cb3318e17eeaa5ad44ad8c66740084f5706947b40651be00e9
font_01_sfnt_off0000e14b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14B 10632 bytes
SHA-256: d76305e0e256459fff33eda9312f3372b380309878026352bf5ab959e531b0b1

Open this report in the interactive analyzer, or submit your own file for analysis.