Malicious PDF — malware analysis report

Static analysis result for SHA-256 846ca4ff38f0c1eb…

MALICIOUS

PDF

40.1 KB Created: 2020-08-11 06:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71d22f4631ce39d643006f0c3a842600 SHA-1: c992adb6fba7c97d2b4374fca4b6c646de22589a SHA-256: 846ca4ff38f0c1eb4998a46e20e0ea174a880a7e3be1dc33df8e5f664f4f716f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple embedded links, including one that redirects to a malicious domain, ttraff.com, disguised as a school attendance management system PDF. This indicates a phishing or scam attempt, likely delivered as a spearphishing attachment. The presence of numerous other PDF links suggests a link farm or SEO manipulation tactic to obscure the malicious destination.

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=school+attendance+management+system+pdf In PDF document text
    • http://files.expeditiondance.org/uploads/1/3/1/6/131636969/6492412.pdfIn PDF document text
    • http://sukuzew.paulaszzerts.com/uploads/1/3/0/8/130874064/8dd287.pdfIn PDF document text
    • http://mebanozef.democraticwealth.com/uploads/1/3/0/8/130873952/8334684.pdfIn PDF document text
    • http://files.mybutlerandmaid.com/uploads/1/3/0/9/130969710/kesotiminiw.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/1/0434/6226/2936/files/72794224373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/94184752832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/worugowuxozenudapatuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/islamic_names_for_baby_girl_with_urdu_meanings.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/1/0430/0016/8597/files/91384966324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8121/1802/files/28690970683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/brp_installation_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/22337773051.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 3

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_off00005dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD6 5676 bytes
SHA-256: 15c7745a2c54780e5eced28ec07612fee06cb7d801ebfcca7c3182a88a5a8a1e
font_01_sfnt_off00007104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7104 10196 bytes
SHA-256: 927a0724c2b94ee2734ebedee44f71d6cd7e5796ef0b645e3c22e2ef80c5f4ec

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