Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bcfd69a7a340f05…

MALICIOUS

PDF

41.4 KB Created: 2020-09-17 10:36:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69cff3075e3abd95f375898c5bcf7140 SHA-1: a56ff95d660f1fcf3520feb6aee46338ce5455e1 SHA-256: 6bcfd69a7a340f050174a9a692c0e1ae19c2b80e88cca0fc3c2b34c6c8cfaaac
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to disposable hosting and redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics as a known malicious redirector. This suggests the document is designed to lead the user to malicious sites, likely for phishing or malware distribution.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/wix?keyword=overwatch+penalty+for+leaving+quick+play In PDF document text
    • http://files.vinylbandits.com/uploads/1/3/0/7/130738673/bukogod-mugufidanamuxak.pdfIn PDF document text
    • http://nekekubo.thedailydelaney.com/uploads/1/3/0/8/130814085/d3ff9e.pdfIn PDF document text
    • http://files.cantormalachi.com/uploads/1/3/1/4/131409884/zivun-sevafuf-tedupiwomiwati.pdfIn PDF document text
    • http://tisiwegab.iowasubtleimageryphotos.com/uploads/1/3/1/4/131438580/69bdec.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/1/0435/6653/0721/files/que_es_la_democracia_participativa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/dewegixomukuzenunozizujel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0869/4171/files/sibuxuwekegutemor.pdfIn PDF document text
    • https://13a29e59-92ac-4ac7-9e47-8c24cd7307e6.filesusr.com/ugd/0fdb6d_b7eee557f57f473a8e273e373be9738f.pdf?index=trueIn PDF document text
    • https://03916d10-1e80-4ef7-ab59-d0693fe75f39.filesusr.com/ugd/c1de29_33f8664d9a374e87bff5311ca7399d88.pdf?index=trueIn PDF document text
    • https://5472920a-6516-4d59-b0e9-8774922a3456.filesusr.com/ugd/90423f_ff843b993b874d09bafdf6e41f5eafd3.pdf?index=trueIn PDF document text
    • https://b969e05a-fc0b-45d0-9227-16342b0507e5.filesusr.com/ugd/197ed4_a594a85c46ec4f399b44b9ca5640a530.pdf?index=trueIn PDF document text
    • https://aa177bd6-b98e-4752-abbe-f2437949421c.filesusr.com/ugd/bcb9fd_c0d41849914f4051b8a8e8b8bddc6e05.pdf?index=trueIn PDF document text
    • https://817153ab-3ffd-424d-9095-ab8abf8483c6.filesusr.com/ugd/bdc04d_1fa1b5952c5a4dbbbf97f13487af606e.pdf?index=trueIn PDF document text
    • https://64054d8b-ec1e-48c5-ab75-26dd581ecda5.filesusr.com/ugd/ea2c45_a0aa6213c1ac4260965dc4533022b45a.pdf?index=trueIn 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 5

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_off0000615a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5568 bytes
SHA-256: b02cf6bf8df3116eaf918368c8636e014d392809dd6b8cc37866f302baad7daa
font_01_sfnt_off0000746e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x746E 10744 bytes
SHA-256: 73874618df4a4a8fc5383962c2e92c5788e9d7e82f77e7a971d9ff4d774da264

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