Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1fbec7e7863d743…

MALICIOUS

PDF

53.4 KB Created: 2020-07-29 15:45:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52695f9cea5fe4e852a25848860552ec SHA-1: 814d0b3c9b9de62b377287c63713ab285cfeb89c SHA-256: b1fbec7e7863d743cd4f8c5481183c6a90291cd962168d79ff4c433c96981724
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to 'sea waybill pdf', indicating a lure to trick users into clicking the malicious links.

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=sea+waybill+pdf In PDF document text
    • http://files.surahonline.com/uploads/1/3/0/7/130738639/dimafixub-vegonutog-saxesobavivolup-gijajogakiz.pdfIn PDF document text
    • http://files.roejendradesigns.com/uploads/1/3/1/4/131406182/pixudekabaz.pdfIn PDF document text
    • http://files.finesurfcraftbyandrewwarhurst.com/uploads/1/3/0/8/130814085/serixeru-menozus-rukaxosuni.pdfIn PDF document text
    • http://files.tylerdiscoverslife.com/uploads/1/3/1/8/131871622/bopukigigo_pabix.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/1/0427/6636/8935/files/refojimoxatobujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/padazipenun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/49174300718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/6884838660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/68904682930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/35092627847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/nolowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6727/5424/files/gowurawoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2096/8351/files/96886924860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/65947137517.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 8

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_off0000954b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x954B 4688 bytes
SHA-256: 733a04fe5815a90211207b4f33e554e500fa42a1474f220da01d2dc3b5196b34
font_01_sfnt_off0000a54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA54B 10544 bytes
SHA-256: 00a93b7d7c5ae42d2b2f5e7efa30e5a36daab1acd1e94d10a487b61fb2d899eb

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