Malicious PDF — malware analysis report

Static analysis result for SHA-256 7760e636b99984b1…

MALICIOUS

PDF

56.1 KB Created: 2020-09-04 23:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a8970ee604a1effe50fdd5ce8007c61 SHA-1: 54f39a13e6abe031d50bffe7f5c4e7cfc7451a6a SHA-256: 7760e636b99984b1509bf41ce88ac5c9fb51c2b3ffb44f874eddcf914030d053
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector infrastructure. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.link/wix?keyword=infosys+written+test+papers', suggesting a lure for phishing or malware distribution. The presence of numerous PDF links and a malicious redirector indicates a coordinated effort to drive traffic to potentially harmful 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.link/wix?keyword=infosys+written+test+papers In PDF document text
    • https://www.gamblingid.com/In 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/1/0461/4488/0803/files/nimunonopobidefaketizes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4109/4817/files/81620275211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1733/0075/files/xedizojazarefibevitotop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/troy_bilt_wood_chipper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/lateral_thinking_puzzles_paul_sloane.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ee4a13_03b41146ec484310b4693a3b30ba066c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bc84a3_873d5160c3014b9192e1328a1febd315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/45304417106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/jibaguwel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/17014833392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/64048546764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/42633179529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5052/3031/files/bridge_constructor_stunts_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8909/files/poruloti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3521/4503/files/altostratus_facts_and_information.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000915a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x915A 4780 bytes
SHA-256: 6875e30c6c9c3e3a36fdd8817ee050332b65fbe5ea0d15c08b601878ac9c873f
font_01_sfnt_off0000a1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B3 10572 bytes
SHA-256: c9a1393e8f057af473b32d37597b68669a3a1b054a5b217f844031c859a3d529
font_02_sfnt_off0000c599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC599 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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