Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cf9008a4cdbb09c…

MALICIOUS

PDF

46.7 KB Created: 2020-08-11 09:54:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb3ef5138ff42bbec6b02bb6f0fdb5ff SHA-1: 4c3863618fb8871079df514c58c1844a6d46c091 SHA-256: 8cf9008a4cdbb09ca97d98e5f8f972e92166f6154d1cd06dd9be145ee91b5f98
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=dire+straits+sultans+of+swing+chords+pdf', leads to known malicious infrastructure. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, likely to manipulate search engine results and distribute 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=dire+straits+sultans+of+swing+chords+pdf In PDF document text
    • http://nopan.humblepiefarm.com/uploads/1/3/0/8/130814328/539858.pdfIn PDF document text
    • http://files.graydensolman.com/uploads/1/3/1/6/131606491/paluzajudiku.pdfIn PDF document text
    • http://files.capitalareaanesthia.com/uploads/1/3/1/3/131398561/pibuwowofox.pdfIn 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/1/0433/6841/5400/files/suboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/35795867450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8123/files/dopadekovotatufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/php_last_modified_file_in_directory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0485/2386/files/69018547516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7914/files/arkansaw_bear_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7705/6165/files/pijeterir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/luwebokipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/awakening_the_heroes_within_carol_pearson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/85986419962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/55947671069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3091/files/gidirotuwokutuguzufawak.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6716 5392 bytes
SHA-256: 0d990a5f2627f6af9026a5aa74a52cf4d5fc82e103b3b0fda2b37bf6937f6142
font_01_sfnt_off00007975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7975 11488 bytes
SHA-256: c84af2db1997a8c492bb59e5af1fb606df13fecc69f947b003c9c431716b9ae6
font_02_sfnt_off00009f1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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