Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7ab186f975b921…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 18:40:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f30a8fd64089527eb791838f42b7e399 SHA-1: 920d98f8f0d6c0ae4329f7c4f773a2621b68f392 SHA-256: 5f7ab186f975b9212e5aeeef3cb6f48653482834029f6072389a4268da2a9f8d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. Specifically, the link 'https://ttraff.cc/pify?keyword=nba+collective+bargaining+agreement+pdf' is identified as a malicious redirector. The presence of a large number of external PDF links, many of which are SEO-optimized, suggests a link farm or phishing attempt to drive traffic to malicious sites.

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=nba+collective+bargaining+agreement+pdf In PDF document text
    • http://jivova.westbendpoliceexplorers.org/uploads/1/3/1/4/131453494/vevotuxijuki.pdfIn PDF document text
    • http://files.azqualityremodeling.com/uploads/1/3/1/4/131437056/xujowapo.pdfIn PDF document text
    • http://files.theforest.co.in/uploads/1/3/0/7/130776485/futupitupetonesoko.pdfIn PDF document text
    • http://files.body-knowledge.com/uploads/1/3/2/6/132681824/2094315.pdfIn PDF document text
    • http://xolimaxid.managingupset.com/uploads/1/3/1/0/131070450/9880182.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/1/0434/6635/8934/files/mib_full_movie_online_free_putlockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5006/files/efficiency_1000_pickaxe_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/22544731767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9105/7058/files/how_to_convert_coreldraw_file_into.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89853177043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/jixeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1679/8883/files/sipolufosivamaxobugez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/11804612137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/5138114299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/91092002740.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 8

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_off00006506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6506 5464 bytes
SHA-256: 97e74182e9629e867a5e4b416c9ab3fb0a0407d260a1ed845bf0d64519482db0
font_01_sfnt_off00007796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7796 10372 bytes
SHA-256: 6e59beb364eadc4921a3c0e1cce23da8e795079496eef3c0cefaa15b2bedf1e0

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