Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f19d91c1910badf…

MALICIOUS

PDF

35.5 KB Created: 2020-08-14 21:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df5b0a8cda38267ba72cbe470772b218 SHA-1: dbbdc567e691171e9de45974281169332002d6cf SHA-256: 6f19d91c1910badf7a38be87d7ef0d2808cbc40aae11c3c5ca81fe7ae784f203
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=christmas+caller+tunes+free', which is also flagged as a malicious redirector. This suggests the document is designed to trick users into visiting malicious sites under the guise of offering free 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=christmas+caller+tunes+free In PDF document text
    • http://files.brendanswallace.com/uploads/1/3/1/1/131164052/17b0fbec144aa2.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/26218426602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6772/6232/files/neu._annotate_ipad_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/google_maps_driving_distance_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/john_oens_wolf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0396/0731/files/javascript_array_intersection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0403/5221/files/50490264604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2487/5674/files/sumuwuzikulexekeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2245/files/nizinodogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/61967927617.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 6

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_off0000464b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x464B 5024 bytes
SHA-256: 2d936aa63fd32b7abf73087bb0e4165e1e49e5f6c246de81e0c1e4f236bd2803
font_01_sfnt_off00005737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5737 13560 bytes
SHA-256: 797e16165c1e3ee7ff88c092fa06353f95e282ecfb700c69474646bb51f38699

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