Malicious PDF — malware analysis report

Static analysis result for SHA-256 facc2cedf4d982ce…

MALICIOUS

PDF

41.6 KB Created: 2020-11-09 02:15:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 9f0983e6301302285b9a52946c283e69 SHA-1: 98882a70755a3c6e4fa154cdfc7ddb245285a0d2 SHA-256: facc2cedf4d982ce7f590a9a6224f92959812809542b90f0ced0278e29445c2e
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://traffine.ru/123?keyword=die+hard+cast In PDF document text
    • https://cdn-cms.f-static.net/uploads/4459468/normal_5fa23ef22bbb3.pdfIn PDF document text
    • https://girigituji.weebly.com/uploads/1/3/4/6/134686745/33504f7ef5cf.pdfIn PDF document text
    • https://pefobasor.weebly.com/uploads/1/3/4/1/134131397/7731223.pdfIn PDF document text
    • https://podosutopo.weebly.com/uploads/1/3/4/5/134590637/6123634.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5f9c6a53b5688.pdfIn PDF document text
    • https://xorusisu.weebly.com/uploads/1/3/4/3/134314808/ravinin.pdfIn PDF document text
    • https://mozeduxazos.weebly.com/uploads/1/3/4/0/134018133/jafozoxej_xitimabi_luzojavobozo_pisupetefik.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/wozumadaku-mukevewurovebu-nefebo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372980/normal_5f97ecb716d12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410962/normal_5f9b536168082.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/1bf7a66e4791.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/608e4bd3-6e5a-4165-90c4-e283518393b5/zeribukamaxuvetesil.pdfIn PDF document text
    • https://rakixopemima.files.wordpress.com/2020/11/25103306447.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AA 4996 bytes
SHA-256: c2ae2e9c9d28f6aaace557454ea319a820def08c27346a2b455882bdfc4c1568
font_01_sfnt_off0000759f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x759F 10604 bytes
SHA-256: a35e126d9fad234b2ae1692501afbb479ac33b31c70dad99fd0d39360ead23a1

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