Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f02565509b3e2b…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 23:19:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72a3fcccc753c7e7100854d75b40a521 SHA-1: 9b36b7153a27201c778d20d4cb710cdfa1090766 SHA-256: 55f02565509b3e2b08b3736ae674f0bc1e49a05238fb82e7d2d46f3c6d62c526
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as legitimate content, but the primary link redirects to a known malicious infrastructure. The document body, though heavily obfuscated, contains the malicious URL. The presence of numerous external PDF links, many pointing to obscure domains, suggests a link farm used for SEO manipulation or to host further malicious 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=happy+birthday+song+sheet+music+for+trombone In PDF document text
    • http://xevenak.stoicqabalah.com/uploads/1/3/2/6/132683138/kadawewaleroj.pdfIn PDF document text
    • http://files.bradleyestates.co.uk/uploads/1/3/2/6/132682570/wirifobeje.pdfIn PDF document text
    • http://jibolomaz.waggonerguidebooks.com/uploads/1/3/0/7/130776023/febf4.pdfIn PDF document text
    • http://files.wcacreatives.com/uploads/1/3/1/8/131856904/pamijuwis-mawamaledesakij-xeganabu-gidimugere.pdfIn PDF document text
    • http://xoritem.teamgoughrealestate.com/uploads/1/3/0/8/130873715/116f91dddb.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/1/0447/7334/3383/files/adverbial_phrase_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6072/3865/files/warframe_eidolon_beginners_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/55350213647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/84279742894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8910/0957/files/mewumagatarusikesotewatex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2758/5445/files/verb_and_noun_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2412/2773/files/pokemon_go_giratina_altered_forme_raid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6041/8970/files/masizajuxasepeviwelew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/fuzalikesomote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/degree_of_freedom_mechanics.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 8

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_off00006748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6748 5740 bytes
SHA-256: df16f7242bc633c8b69670d77a83c4c7badbd5efc42f3b8cb6cb2c819f6ddd0a
font_01_sfnt_off00007a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A9E 9896 bytes
SHA-256: b2ffadc364ffb782c5db3287b4f0de9e0fbf1cc35fec355db1626287f60143b0

Open this report in the interactive analyzer, or submit your own file for analysis.