Malicious PDF — malware analysis report

Static analysis result for SHA-256 39d2465c883edf98…

MALICIOUS

PDF

43.0 KB Created: 2020-08-18 23:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a81366c9d58694e6c911bdf451999dc4 SHA-1: b39e9e4fc00ad4bb5b2c4ff6444311e59651f4ff SHA-256: 39d2465c883edf9801c43b6053eff519b6367c29901adafb5371ad0b98448dc2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. One of the embedded URLs, https://ttraff.cc/pify?keyword=kings+river+arkansas+fishing+guides, is identified as a malicious redirector. The document body contains garbled text but includes the same keyword as the redirector URL, indicating a potential lure.

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=kings+river+arkansas+fishing+guides In PDF document text
    • http://files.iccanmusic.com/uploads/1/3/1/3/131384559/ffc0b8d137980.pdfIn PDF document text
    • http://files.chapeltownfootclinic.co.uk/uploads/1/3/0/7/130740517/kanusadefa-defun-mikimowerenal-jidop.pdfIn PDF document text
    • http://files.andrewdpaterson.com/uploads/1/3/0/9/130969004/f51de.pdfIn PDF document text
    • http://xuxero.uhphisigmarho.com/uploads/1/3/0/7/130775432/buwozixiz-kogonisipuzi-mipilunux.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/1/0431/0378/1015/files/hips_dont_lie_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80084587067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0481/0648/files/babbel_italian_premium_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/52498332148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4932/8533/files/33120946476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/vonusinitalitudusopun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0810/files/zezimexepatixoxurowofexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/jojiralekigijufame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7844/9307/files/2315722395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/inc1_objective_assessment_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0304/1176/files/night_auditor_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9983/1968/files/bipazo.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 4

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_off00006790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 5228 bytes
SHA-256: 2f62c9579939c82147f638d43f0652faa290f3be8d22b7a3b87fe431893fc17d
font_01_sfnt_off00007953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7953 11040 bytes
SHA-256: 0054e87c867ef44a5979a7d712353fc1ee919d5bba8f0a292f0bbc18f295dd35

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