Malicious PDF — malware analysis report

Static analysis result for SHA-256 036ac65beabc84b1…

MALICIOUS

PDF

42.5 KB Created: 2020-10-09 16:25:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1f5951fd184744b2a5e8add40f824ead SHA-1: 7ec65c9861de5fedac12e974338af41123ef4389 SHA-256: 036ac65beabc84b10bf627aee86d9dc3c721c6270b35bb728a2f485eec460b81
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=cactus+mccoy+2 In PDF document text
    • https://site-1038575.mozfiles.com/files/1038575/bijakoxuvenizorezovojifav.pdfIn PDF document text
    • https://site-1040442.mozfiles.com/files/1040442/83725537667.pdfIn PDF document text
    • https://site-1036879.mozfiles.com/files/1036879/46965870047.pdfIn PDF document text
    • http://files.frenchcreekdiscgolf.com/uploads/1/3/2/6/132680808/4881616.pdfIn PDF document text
    • http://files.magnoliachapter14oes-pha.com/uploads/1/3/1/0/131071067/c38a04.pdfIn PDF document text
    • http://vulex.twincityphotography.com/uploads/1/3/1/4/131453453/7586940.pdfIn PDF document text
    • http://files.tennesseeheartwood.org/uploads/1/3/1/0/131070792/af3edcdf.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/1/0429/2414/6855/files/28548457432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3709/2771/files/76487953721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5540/6494/files/91515390309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6099/9845/files/zarageridexoperunej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4510/5045/files/how_to_do_a_french_accent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b60ec3-a746-42b2-8a2e-503665b77e90/nerufogasudotik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c8fd9b3-534d-4b86-8517-f9050aa22cce/48106290742.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5a92de9-aab3-49fa-acdd-9ea5eec4a3d9/9019977891.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B5 4956 bytes
SHA-256: a4aed637c8fee150c1679fd3401154bf2b78e968363e7612c154e16002d61fd8
font_01_sfnt_off00007a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8A 10152 bytes
SHA-256: d861efc622558ffbef926117e5894d16ce18f0e72b016d8e1367b0cd627fff8c

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