Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3f94592a92d827…

MALICIOUS

PDF

50.2 KB Created: 2020-07-26 06:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c0b901fc6a1474eb74372ae5d4be88e SHA-1: dd1e0a8b32faa6c412d961886aa0d7a8250ae877 SHA-256: 3a3f94592a92d827ab80e9bad6f3158d472eac18eec4964ddf9a38415612bfad
194 Risk Score

Malware Insights

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

The PDF contains a link farm, with multiple embedded URLs pointing to Shopify and other domains, ultimately redirecting to a malicious URL (ttraff.cc). This indicates a phishing or scam attempt designed to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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=family+and+friends+day+flyer+template+free In PDF document text
    • http://files.mk-bricks.ca/uploads/1/3/0/7/130739073/6114767.pdfIn PDF document text
    • http://files.lowvisionnd.com/uploads/1/3/1/4/131452735/wozezenemapirazu.pdfIn PDF document text
    • http://files.chino77thcavalry.com/uploads/1/3/2/7/132740545/busiva-xifebojetata-vidugazukijelu-madifodezit.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/1/0431/6705/6028/files/xumalidukavabidaxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/123022630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0751/6578/files/30729705122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/gizifotiforazizajejurased.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/73980869581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4637/9426/files/fijot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/71214548341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7111/8235/files/30777266092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonixalekena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/86672106456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/94234502212.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_off000078fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FB 4924 bytes
SHA-256: c5906d497c4e2a4aa143212bc35b791fd572b660ea0b847675e2205603e66fff
font_01_sfnt_off0000899e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x899E 15524 bytes
SHA-256: d9813e1bfc8f53d21dd9bae8254ec56c25977a968aaf8223c8313004953affff

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