Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffa1e8bf210c7cb5…

MALICIOUS

PDF

42.5 KB Created: 2020-10-13 18:59:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 503289357f8d0113f00e06f39bd07629 SHA-1: e45b52109663cd3524f16cbeb1396b348fb82db1 SHA-256: ffa1e8bf210c7cb5aeba0328345073afd9c74e23b66611993975d5f370f35d5d
184 Risk Score

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://cctraff.ru/strik?keyword=ets2+bus+mod+game+download+for+android In PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/tebavu_mofevuz_punoxibera_gijipomole.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/32e063a95e.pdfIn PDF document text
    • https://site-1037091.mozfiles.com/files/1037091/69428835016.pdfIn PDF document text
    • https://site-1040312.mozfiles.com/files/1040312/gevesinit.pdfIn PDF document text
    • https://site-1036811.mozfiles.com/files/1036811/fojowefezizadulamuv.pdfIn PDF document text
    • https://site-1037160.mozfiles.com/files/1037160/pokipitamadanawasulodu.pdfIn PDF document text
    • https://site-1039002.mozfiles.com/files/1039002/xowivobejirixobewozogi.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/ad71b502-7796-430a-b320-9e4493b373b5/xipomen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aeca7393-6000-432d-a8ac-59848fea23b5/timopit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf4a74e-11a0-4489-9f9e-8eb38e617981/lamugiwovetilivexabujin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ba17e90-462b-4524-bba2-308f475dc1f4/xitekirolamebamodud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ccb1ce4-b5e8-4abb-abe9-dcb658ba6fe0/33714156903.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 8

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_off00005896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5896 5432 bytes
SHA-256: fb9e954dc3af7dd3168089eaa11f1550dea4da833c33ad07e5efb00113b5089c
font_01_sfnt_off00006b00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B00 10392 bytes
SHA-256: 3459e709f25f456272afa5b872733d1c9b7e0d0da87ef82b3c3a88c532a36ae2
font_02_sfnt_off00008e8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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