Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a9076c095ecb06a…

MALICIOUS

PDF

44.6 KB Created: 2020-08-18 16:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cfc84a97215f43976e6b7afdd255f4b SHA-1: c8cf9d39bdeb7724baeae1b115ae825776f8f80e SHA-256: 5a9076c095ecb06a41175a4011c61f29fd9e31311fcbd977c32258250f1dd00e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body also contains a URL pointing to a redirector, likely intended to phish users with a fake download lure. The presence of numerous SEO-optimized PDF links further suggests a link farm or phishing campaign.

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=barasuara+album+pikiran+dan+perjalanan+rar In PDF document text
    • http://files.rockingchairuniversity.com/uploads/1/3/2/6/132681951/derufisafuso_lapiwegokotisu_jejer.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/1/0433/4311/8495/files/xetegeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/guide_taille_ceinture_femme_tommy_hilfiger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/class_12_chemistry_coordination_compounds_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/mesaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/dofusarugewobuvigafusezef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/rexurilujawuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/813112705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3991/5164/files/39956556214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/couper_un_en_plusieurs_foxit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8885/files/61313482875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/94685179241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0797/5335/files/bupisudojapazaluxoxolal.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 2

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_off00006240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6240 5124 bytes
SHA-256: 9fb5e3d4fc26dbdb9e9b6a543a5e4419c5fc71928b3a0e4bf09bcbb1df8934fd
font_01_sfnt_off0000737c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737C 10388 bytes
SHA-256: 708429d44a9f9b5168ff3b0e8390037567b03b8dc167adc9ac04a6ad89f760b7
font_02_sfnt_off00009714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9714 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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