Malicious PDF — malware analysis report

Static analysis result for SHA-256 344c74feeeee89f6…

MALICIOUS

PDF

43.8 KB Created: 2020-10-06 18:33:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 459d83c41c212ff10d948dd894965b02 SHA-1: f0420a0775a00e1a5e909aac1d1c8341ab983b72 SHA-256: 344c74feeeee89f69c7edf60b6136e1c78921a4a30522e0a65dcf7ab26be8305
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://ggtraff.ru/strik?keyword=padre+rico+padre+pobre+resumen+pdf In PDF document text
    • http://files.birthcontrolsafety.org/uploads/1/3/2/7/132710507/kojuxasuwabij-vadebebixow.pdfIn PDF document text
    • http://files.hillfarmhistoricalsociety.com/uploads/1/3/0/9/130969103/nikogolek.pdfIn PDF document text
    • http://nupatose.reloadman.net/uploads/1/3/1/3/131384401/luraju.pdfIn PDF document text
    • http://mazufami.ephesians320ministries.org/uploads/1/3/2/7/132712324/jododovo-kiguwobeno.pdfIn PDF document text
    • http://tetino.forthejoyofit.org/uploads/1/3/0/7/130776088/refebu-jibifegutab-gobigoxena-vafuk.pdfIn PDF document text
    • https://site-1039921.mozfiles.com/files/1039921/gokejubopalipepaju.pdfIn PDF document text
    • https://site-1042282.mozfiles.com/files/1042282/49584541232.pdfIn PDF document text
    • https://site-1043937.mozfiles.com/files/1043937/67712623708.pdfIn PDF document text
    • https://site-1037059.mozfiles.com/files/1037059/58239366097.pdfIn PDF document text
    • https://site-1038525.mozfiles.com/files/1038525/47234734413.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/1/0484/4113/1162/files/phone_line_tester_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1617/4998/files/31191600172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9125/5713/files/tobopuzasuluzebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9593/2574/files/4686800971.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c5318e4-ef8a-416d-9b32-79b5dcc40909/rabebopifuwined.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c015637-5a6d-478d-beee-79b071fadd17/22763190794.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5109c0f1-43e3-4772-892e-ac5cc5fc6436/zukuluzoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e9bd899-f0f8-4fe7-827a-dc2e5dad6950/mizorope.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_off0000624e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624E 5408 bytes
SHA-256: 86463e0932b65f4e08418dbad9ad625466f642e3bfd9dc76b3e03b092c7025e9
font_01_sfnt_off0000748d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x748D 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00007d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1A 11324 bytes
SHA-256: 49e0463b86e18d4776528bc1eb4f0f177d4f6a49acdc8d4ba80777d11c94543a

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