Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab21b0f911f26f8…

MALICIOUS

PDF

40.7 KB Created: 2020-07-31 21:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c4fb6ebfe2ac5a391bee80efb388d08 SHA-1: b516adef985c7149495508396768862dc8700590 SHA-256: fab21b0f911f26f804af4887d0ffafcca906beac4f320f2e66c9408787ade30d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a malicious domain, ttraff.com, which is flagged as a known malicious redirector. This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure.

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=so4+oxidation+number In PDF document text
    • http://files.marketingemailnewsletter.us/uploads/1/3/1/0/131070394/87c6a33.pdfIn PDF document text
    • http://files.boundlessfarmstead.com/uploads/1/3/1/6/131606492/5809037.pdfIn PDF document text
    • http://files.solarmoonpress.com/uploads/1/3/1/8/131856317/mapes.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/1/0433/0687/7080/files/sekokejeninidifowabofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/a_flexible_binomial_option_pricing_model.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/92628626636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2457/0792/files/70667493376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3826/8830/files/82544080240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/73140546348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2996/8534/files/72598285739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/jolivumewipele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/74741045259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3855/5805/files/vezalawubobifakabununamo.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_off00006119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6119 5160 bytes
SHA-256: b3e27901262cf75c8d01813917292b4014ebfe040667b9f64bbc3ba081cba2f6
font_01_sfnt_off00007299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7299 10516 bytes
SHA-256: 504a1a755608c3b159b172e7454ef4faffe7088227def3471044612ed75af1c2

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