Malicious PDF — malware analysis report

Static analysis result for SHA-256 f337611d2f6446e2…

MALICIOUS

PDF

57.9 KB Created: 2020-08-10 23:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95c4d61b3cf9d826d82cfe233daa7ebb SHA-1: 49a49ac62b6916471c1a7fdde387e529fd22e163 SHA-256: f337611d2f6446e209d9c328c5b589fd51008acc67d7fc4c9c4fbb1708ef1383
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a link to a swimming technique PDF. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, reinforcing the lure. No scripts were extracted, but the presence of a malicious redirector and the SEO link farm heuristic strongly indicate a phishing or malicious redirection 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.cc/pify?keyword=breaststroke+swimming+technique+pdf In PDF document text
    • http://files.brunswicktravelbasketball.com/uploads/1/3/1/4/131454034/gabewoki.pdfIn PDF document text
    • http://zuxopuxip.sailingandcruisingni.com/uploads/1/3/0/7/130776330/55727.pdfIn PDF document text
    • http://tezina.augustf.com/uploads/1/3/1/0/131070872/dapoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/membrane_proteins_and_their_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5961/8716/files/75702533054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/40341599445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/32047900474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/48880363746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8792/5143/files/exercicios_de_atomistica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4406/8773/files/repovoninalajewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/favamadilapat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2960/files/73179454396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/63253739191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6330/3575/files/14542380083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/65488760102.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 2

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_off000096d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D0 5752 bytes
SHA-256: 82f7f69d463297bd53359fcf47e14c04a0ad30192475bdab9a9d0fa640e7c08f
font_01_sfnt_off0000aa44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA44 9908 bytes
SHA-256: 84e8108232a951cd67cac66b5e5954006fae24a07e30b666689f3a7aa82a5cd9
font_02_sfnt_off0000cc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC26 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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