Malicious PDF — malware analysis report

Static analysis result for SHA-256 77c82f98ca164d5e…

MALICIOUS

PDF

46.3 KB Created: 2020-08-19 08:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ffa1d0ea481825d741320a35d34abbc SHA-1: 2726798cfed7278a8c39593d11ad02247ba251e5 SHA-256: 77c82f98ca164d5e95bc3e6734f312b805eef8956a947399c257f59bc7ac2f23
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm and a redirector URL, indicating a phishing or scam attempt. The primary redirector URL is identified as malicious infrastructure. The document body, though heavily obfuscated, contains references to a 'meeting agenda template' and the malicious redirector URL, suggesting a lure to download potentially malicious content.

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=meeting+agenda+template+free In PDF document text
    • http://xovatinen.jessicaluni.com/uploads/1/3/1/4/131482952/linowufakuzijuxub.pdfIn PDF document text
    • http://kuvafoga.siobhanmcgibbon.com/uploads/1/3/0/7/130775795/tufaguninilonepugin.pdfIn PDF document text
    • http://files.punchlistms.com/uploads/1/3/0/7/130739664/5d899f75d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0166/6969/files/2018_honda_crv_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6331/1520/files/69101160699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2699/6633/files/11384469039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/commercial_pilot_oral_exam_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/wefaxiwedoraxoxima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5609/4614/files/cellophane_sheets_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/itc_hs_code_list_2020.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7E 4864 bytes
SHA-256: 3cb836c4d72292ba590999a3e1af69615ad33cda991cc609501c29af97540b5b
font_01_sfnt_off00007ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CED 9856 bytes
SHA-256: cb2b169d00a964536a463443c7555464a1505c94e630d0276f215bb7f5aaf586
font_02_sfnt_off00009e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E8E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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