Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f01953217b999c7…

MALICIOUS

PDF

39.2 KB Created: 2020-08-01 21:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 907f8ef6752740c8c71f552d6edfef9a SHA-1: 619ff49a29a76229136e0e9a2175814c9cba3681 SHA-256: 3f01953217b999c7187c66ecaca410331fc7714d684e468188b4f961f205dda2
202 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to external PDF files hosted on various domains, including Shopify. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination of the malicious payload. The presence of a link farm and a malicious redirector suggests an attempt to distribute malware or engage in SEO manipulation for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=clover+boot+flags In PDF document text
    • http://files.racketeerrobot.com/uploads/1/3/0/7/130739982/6442442.pdfIn PDF document text
    • http://files.remarcable.me.uk/uploads/1/3/1/4/131438245/nobinopovuzip.pdfIn PDF document text
    • http://files.schoolofthoughtblog.com/uploads/1/3/0/7/130739919/db6cfd1f1496.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/1/0439/5863/2606/files/pomuzejonimepek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0091/4343/files/6395725462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/1757387388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4615/0039/files/59417356165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/32353984541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/mowexisemazazopox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/43023173301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/xawovizajepoluboxegutiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/jofowodugoduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4373/2126/files/gokatoxuzurerekiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9109/0844/files/33854917394.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBC 5040 bytes
SHA-256: b6fa7ae3945ebdcc99c810ca2e126b8b8238fbe506de441cbea6dc356a38a431
font_01_sfnt_off00006df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF5 10068 bytes
SHA-256: f9441c84d31c02b757b6495f10a9aeaf47fbb831ea88a3f19367df89ee1633e3

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