Malicious PDF — malware analysis report

Static analysis result for SHA-256 35572fd65ee23cb2…

MALICIOUS

PDF

41.8 KB Created: 2020-08-24 22:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15d5acbfe34a27bc3772f17beb4bfd82 SHA-1: 74a792a730e8b432b3e4f47b8c4ecbf1471d4df3 SHA-256: 35572fd65ee23cb2f62eaf361f316ecdd826a64f3a68758f5ac766b13b0b098c
162 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches one of the identified redirector links. The presence of a malicious redirector and a large number of external links strongly suggests a phishing or scam attempt designed to lead users to harmful sites.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=messenger+app++for+iphone+5s In PDF document text
    • http://files.recconnectionmiami.com/uploads/1/3/1/4/131482931/rukasunurej.pdfIn PDF document text
    • http://files.anglers-rest.com/uploads/1/3/1/8/131856333/labatojiguv.pdfIn PDF document text
    • http://files.sccellars.com/uploads/1/3/0/9/130969254/95259d6ad07dca.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/1/0433/3902/2485/files/lababox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3064/2587/files/facebook_reactions_emoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/plantas_alimentcias_no_convencionais_panc_no_brasil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5291/6119/files/ghostscript_print.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6389/4170/files/lefuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/xesejotoxujumikusoxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/57085429046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/vofarubuwozofitenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90554838216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8733/9413/files/50601775498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/timifozaponunanobejegunab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1538/7811/files/32559164103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/vujijapuditive.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
🗂 Part of campaign: saipanprivateschool.com 3 samples

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_off00006522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6522 5260 bytes
SHA-256: 88bd170edad1e337a92e508cf40f96cf7e15d71cc564663a8d5716313cc32a18
font_01_sfnt_off0000770c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770C 10308 bytes
SHA-256: ed2db47b63420d79cd22ed799e825ec66193b5369ac6d4e3878f2ecbb8d6d61c

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