Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc1f1f796bcbfaa…

MALICIOUS

PDF

42.5 KB Created: 2020-08-15 05:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76bb75c36e990d142e407199790d5eab SHA-1: e0afa61f0d35b9a033e1ded8672ef2f5fdbe2dfc SHA-256: cdc1f1f796bcbfaab7b558998e96abb22ddaea04bd67f3e419da01d3b3351cf0
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the text "daily safety inspection checklist template" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further supports a malicious intent to drive traffic to external resources.

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=daily+safety+inspection+checklist+template In PDF document text
    • http://fakonawas.roseviewfarmborders.com/uploads/1/3/0/8/130874422/9075bb8f1.pdfIn PDF document text
    • http://files.jengetslost.com/uploads/1/3/1/8/131856331/xusokofazolo.pdfIn PDF document text
    • http://files.foundationsfirst-ni.com/uploads/1/3/0/8/130815437/viwixopip.pdfIn PDF document text
    • http://ropajow.vickilake.com/uploads/1/3/2/6/132695584/tenesuzelinusak.pdfIn PDF document text
    • http://files.michelemattinglybooks.com/uploads/1/3/1/4/131454286/46951.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/1/0429/1251/4201/files/58133078730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8282/5382/files/niralajepakezuxav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/razedezelumavozozizus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9093/5969/files/jspdf_autotable_multiple_tables_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/90977524464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3020/8924/files/software_automation_testing_secrets_revealed_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/10th_class_math_notes_urdu_medium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajakeveposemilakojataza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/vugonig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9553/1424/files/12335055966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/rabotemuxadetasavaveri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0749/2775/files/76094536524.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6904 5324 bytes
SHA-256: c56116283a2070c0e59ab7511856a19d2cd24938e5240817965e43940f861a47
font_01_sfnt_off00007aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFF 9860 bytes
SHA-256: 53b6dca1ea68fe4d5ba6b565a19397c2f94c9cd43de640263ba45afa94c3eaa6