Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c653cd9c5cc610…

MALICIOUS

PDF

53.4 KB Created: 2020-09-11 18:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55388e6b2208236b925531e221f43c03 SHA-1: 0c8dff75d5d24452d719f8c4c1f4432a69cb1e79 SHA-256: 79c653cd9c5cc610927ebded7eba2345774beb39549e58291c245c2a1627e4aa
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to suspicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector identified by heuristics. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or further malware delivery.

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.club/wix?keyword=amman+god+songs++starmusiq In PDF document text
    • http://files.baileyjackartstudio.com/uploads/1/3/2/3/132303320/tirekujopatoduwivu.pdfIn PDF document text
    • http://files.bodymaxpilates.com/uploads/1/3/2/6/132695493/tivokemaxil.pdfIn PDF document text
    • http://nowexeki.normandy-battlefield-tour-guides-association.com/uploads/1/3/1/4/131453109/walexelun.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/1/0463/3339/5099/files/chronicle_of_higher_education_crossword_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8017/1174/files/dream_theater_images_and_words_albums.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8204/6869/files/zuruzaxinotoburudod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0203/5351/files/dexadiwor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4094/7880/files/wefimurobekojevilugagakit.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bd1fc0_b790de0336624b9fb73f4bb497fd15a7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9cc572_ff4b58c3c4c14706a42c772efe0686c7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4c3d6a_9cbfafa74489415590a6ddaabb597663.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 3

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_off00008d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D36 5228 bytes
SHA-256: 5449fc121540136be64e14f68eed949e83707a15f7898ef86472c0157a248031
font_01_sfnt_off00009edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDC 13388 bytes
SHA-256: 87ddbe20507e9a3256e023e70ffb98ffcf1e72c4ad89ec1899fba7fbee0a9e60

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