Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f92480863bece7d…

MALICIOUS

PDF

38.4 KB Created: 2020-08-17 03:15:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34e17caf01001c4286ad370928947a39 SHA-1: 141bab126bcae6e35460f6180c8378c91e759304 SHA-256: 9f92480863bece7dbbfa7f9a49820574b158c2d9e9477aecbab817105aef529b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to a song title, likely a lure. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to malicious infrastructure, potentially for further exploitation or phishing.

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=britney+spears+song+criminal+free In PDF document text
    • http://girilulu.klahyatt.com/uploads/1/3/0/8/130874359/jusemujivasoted.pdfIn PDF document text
    • http://sufir.placeworksdesign.com/uploads/1/3/1/3/131379295/ferum.pdfIn PDF document text
    • http://files.nhstc.com/uploads/1/3/2/3/132302764/lunir-zekimonatok-segepebaneweve.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/1/0428/9835/8432/files/44240048578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8150/7740/files/67043476806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2805/4169/files/70395385779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1662/6082/files/wigefizoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8625/6030/files/miss_selfridge_shoes_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/40524530994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98774508290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/mabir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/saropelomosamesutoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1766/5703/files/speed_and_upload_speed_explained.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/zapinajegevozojoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/wexiwafozirikikitalig.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 1

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_off000057f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F7 5488 bytes
SHA-256: 421ce81c7abc8f570fabe518641cb036eb96b1464392b8165fb92067df24eaf5
font_01_sfnt_off00006a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A98 9876 bytes
SHA-256: c77314f15dcad7fb304bae041bd5b57d212d34b98c6653644956502bb45210b7

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