Malicious PDF — malware analysis report

Static analysis result for SHA-256 a11d46fd41b309ec…

MALICIOUS

PDF

51.1 KB Created: 2020-10-16 10:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 84987df7d2291cb99620f486e26c0420 SHA-1: 7786e9257cf1d75efde7b167db0b8eeb5d8e4f6c SHA-256: a11d46fd41b309ec77a8d274015b00a30e505340a9f79e4cfbeb4edac5d8cc94
132 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://cctraff.ru/strik?keyword=transformers+4+full+movie+in+hindi+7 In PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/606c3c.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/400883.pdfIn PDF document text
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/5571969.pdfIn PDF document text
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/1857186.pdfIn PDF document text
    • https://vekejuritikoj.weebly.com/uploads/1/3/1/8/131857631/3408965.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5f88a79046653.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373998/normal_5f89061f3378a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5f87460c622d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f87ce06e6060.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8729f468acf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368243/normal_5f8850f802219.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/6319555.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1441493.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://uploads.strikinglycdn.com/files/5de1758b-2677-4811-8623-abd964cdd5d3/xizawupuba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab2c1dd9-c9e1-4697-abed-4c669a2f05af/fesufit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/488be7ee-6e37-4484-9d01-201e6013a4d9/75094972653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5cdda09-4ff8-4c43-b8d1-db4ca4d555f6/judazesawexosimosasi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69bec068-feee-4e72-8b91-e7784c195911/78692505093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/3366/1077/files/diwisakitekodurufas.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3B 2952 bytes
SHA-256: d8b907802410e675ceca2784509e58a9dae2947c1b2ad43e3e0c02687eabed47
font_01_sfnt_off000066c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C9 5124 bytes
SHA-256: 001bdd653f129f007f070312c7b1827c996cd2a4ea110aa316e5f180b7220985
font_02_sfnt_off00007805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7805 10176 bytes
SHA-256: 9277ca793baea230d583d0a87cfd67d0cb906797bafe37f9b211c8e7c4485da5
font_03_sfnt_off00009ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE5 16124 bytes
SHA-256: db4f55cc351e62523bde1cbc6177819ff25f62b46b1247b95d7ff7a8943b322d
font_04_sfnt_off0000afc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC8 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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