Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ced7f3c4a076875…

MALICIOUS

PDF

44.2 KB Created: 2020-07-31 10:22:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88be4a910476baee12e1901e943b19d8 SHA-1: 68500ee49524929b92a00114d27836ce957a01fe SHA-256: 5ced7f3c4a0768750907e64b73564011be91fa4ca34f3dba163a7a58093caeb1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple links pointing to a redirector service, which is a common tactic for phishing or distributing further malware. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate a deliberate attempt to create a link farm leading to malicious infrastructure. The ML classifier also strongly suggests maliciousness.

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=mycenaean+greek+dictionary+pdf In PDF document text
    • http://files.bodypercussionclassroom.com/uploads/1/3/1/1/131164063/cb5658e6.pdfIn PDF document text
    • http://files.crownsofgloryw1gs.com/uploads/1/3/1/4/131438819/48e08a2d0de070.pdfIn PDF document text
    • http://files.lindsayreissnsf.com/uploads/1/3/2/7/132741194/dixijagaw.pdfIn PDF document text
    • http://files.hypnobabiescoloradosprings.com/uploads/1/3/1/3/131383949/salasujugavuzifumi.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/1/0432/2862/7099/files/fugupiwufurirakesajaxewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2762/7164/files/97040252165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27039997465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1427/3698/files/62520485769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/kagumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/zazajovobol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/pobuwefamamineduwosima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/70544843214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3873/4496/files/zedog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1277/3272/files/10313149126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/93509762903.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_off00006fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA7 5072 bytes
SHA-256: 3f1a919d6512cedd658ad1dc5c4c91cf112a6b04cf7057b279a36581ec033228
font_01_sfnt_off000080fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FB 10224 bytes
SHA-256: 72be92ddc6d57eb3abf3be878ec8ece58b67b2f8fd69ba835782f96c809947a6

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