Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd54806c8ad62b0…

MALICIOUS

PDF

57.1 KB Created: 2020-08-11 16:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e788feadc2db528dfed9c7781b70a22d SHA-1: 3c0ce6a88a286dbf7876c30075a6802d6cbb8e9e SHA-256: 6dd54806c8ad62b05b052c45a37386a1e351ef6359b1076a626ab970651a299b
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create an SEO link farm, with a primary redirector pointing to a malicious URL. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a phishing attempt disguised as a document download, likely to lead users to malicious content or malware.

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=metafisica+aristoteles+pdf+descargar In PDF document text
    • http://files.holmesroadchurch.org/uploads/1/3/2/6/132695714/a4d336a5b84978.pdfIn PDF document text
    • http://files.thelakemermaidempire.com/uploads/1/3/1/3/131383493/sazazes.pdfIn PDF document text
    • http://files.thinkerslodgehistories.com/uploads/1/3/0/7/130739996/kevijesifi.pdfIn PDF document text
    • http://files.burleybridge.com/uploads/1/3/2/8/132814250/wazodal-katom.pdfIn PDF document text
    • http://kufuditam.maronianinsurance.com/uploads/1/3/1/6/131606490/betov-vepalesixuz-patavo-betilet.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/1/0427/8140/9436/files/disilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/divogevosekiwiredubabozim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/vesoxudajozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7644/3557/files/roresar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/toraladomokipina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3690/1527/files/zolopupuwur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/17_note_kalimba_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/pujosobij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/10081055646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/warhammer_40k_ork_codex_vk.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 6

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_off00008a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3B 5012 bytes
SHA-256: 6a07ce840378089f16782d64d88107a1bf33ba1f773149cd617424985e9b02a7
font_01_sfnt_off00009b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B5C 14496 bytes
SHA-256: d12f61e84bdba2378f81b6ecc7d53fe06a94165ef9db302f712fd8454e219f3f
font_02_sfnt_off0000c719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC719 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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