Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6f49e8caedad7bc…

MALICIOUS

PDF

41.4 KB Created: 2020-08-20 02:13:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6793dc567e5f7b1ea62d4fc6ecc1254b SHA-1: 44ae2d6982d13e60bc9deabb86a9652a2921bc4f SHA-256: b6f49e8caedad7bc4bb92886d24fa48faa59bcd10531a07f9b813145a8a3fbb9
194 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 of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=calendar+template+with+week+numbers+2019'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=calendar+template+with+week+numbers+2019 In PDF document text
    • http://files.handynola.com/uploads/1/3/2/7/132711966/2f017b277.pdfIn PDF document text
    • http://zigaz.reedhospitalityassetmgt.com/uploads/1/3/1/0/131070364/7844d821be64.pdfIn PDF document text
    • http://tajewed.macabrecinema.com/uploads/1/3/2/8/132814930/257dc15.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/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1362/5240/files/endnote_desktop_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/40102429444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3732/5462/files/wokamawotapafatetesoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/feels_like_temperature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6137/9226/files/matrix_multiplication_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/12211767280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9292/4821/files/nasutominalabelowoko.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 1

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_off00006198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6198 5884 bytes
SHA-256: f5b05fce3c6df01a1529197d2ce0c7aa4f9ce9da957c34ad88dc90d2c29d2598
font_01_sfnt_off00007573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7573 10328 bytes
SHA-256: 865c6ee64fc31f3c090f498dd7da52fd61e67623f7d1d8cf7a46b76b51d6d990

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