Malicious PDF — malware analysis report

Static analysis result for SHA-256 3999569b70d42914…

MALICIOUS

PDF

44.1 KB Created: 2020-08-23 07:32:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d0fcc86db662197cec9405d960fc33b SHA-1: 28a6e69e535116e1e9569c8796fc0ddc05c687b8 SHA-256: 3999569b70d4291467539970771bead5cc381b761be921e4c3e03684b1190bdf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as a download for '365scores sports live scores apk'. The document body also contains this URL and a reference to wkhtmltopdf, suggesting it was generated programmatically. The presence of a PDF link farm further indicates malicious intent, likely to distribute malware or phish for credentials. 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.com/pify?keyword=365scores+sports+live+scores+apk In PDF document text
    • http://widajufi.depthstiny.com/uploads/1/3/0/8/130814579/jajuvabegojenoj.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/1/0431/3337/0522/files/febuzijomukopofabived.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/1910807297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/peculiar_institution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3647/8361/files/materi_descriptive_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4451/1645/files/wikokogovajire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/banafefapepeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0973/1734/files/child_development_and_pedagogy_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58829080427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4619/8683/files/radorofidilugizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/68799099672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/livecd_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7624/files/25998118451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9829/2643/files/sedifasurejedozesuweloj.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFB 5080 bytes
SHA-256: 42961f06da0044e677f184015d9b98fb41a940c9aec31897d9707d872e905047
font_01_sfnt_off00007041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7041 10880 bytes
SHA-256: f50be30d7392503382cd3621e45643c954395ab8fa9232cb2187219ede6c88c0
font_02_sfnt_off000094fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94FC 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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