Malicious PDF — malware analysis report

Static analysis result for SHA-256 7978c78c73dd8df9…

MALICIOUS

PDF

42.1 KB Created: 2020-10-18 13:19:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c0a8a154e0b12af138015df466f14761 SHA-1: e4fb23f3f70721c62235c111f83a7acbb3780ddd SHA-256: 7978c78c73dd8df97ce101ebebd45f9e81a661552b54e2833a7214d960607f9d
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=how+to+deflect+for+honor In PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/bajili_kuvobediso_pinevuwera_dediteto.pdfIn PDF document text
    • https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/c6f90c6d7.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/51f0bbcd1782bf9.pdfIn PDF document text
    • https://givexikiduxa.weebly.com/uploads/1/3/1/3/131398224/4401522.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/18ad995.pdfIn PDF document text
    • https://jumuwubugunitus.weebly.com/uploads/1/3/1/0/131070493/1111934.pdfIn PDF document text
    • https://vidojibirulon.weebly.com/uploads/1/3/1/0/131070792/7903098.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/varudirowivegepiz.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/88beb1b7-98ce-42c6-8cdd-34426772d1b3/bizawusokaxewizutafesisut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20a1bbe7-e04f-447c-8a71-2c33d1c06273/61546792146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab4ac281-d5b8-49ba-ae55-cc727d8eff32/19541797721.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/638015df-a0ae-4afb-8c47-187202c0a39a/batemusuvefedo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e795a185-d7c8-4b14-b330-c3be5249831e/81202522932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3163/7415/files/raviroxidixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2451/7800/files/41592581828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6153/8727/files/menards_price_adjustment_rebate_form_november_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8579/8818/files/costco_gluten_free_pizza_kit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5e75292-cbce-419a-8259-429350fc5173/1816480684.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfb519fc-7dc9-4e31-a0f1-bd8df7cf133d/55873543783.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c88aae45-a2be-49d6-9c7c-0e22fec9b99a/fumijapake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6721/1428/files/22087729735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/2266/3835/files/rikakileraboxirobajuzipu.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_off00006865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6865 4772 bytes
SHA-256: 3d9aff9bd631808eb18b83bde7e28e4853bb683eb37039020caab1046921dd28
font_01_sfnt_off000078a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A7 10220 bytes
SHA-256: 4bb4c2e316a47a0b677b67f867e2718933c813b90869fd55da0a7f2e5bb801cf

Open this report in the interactive analyzer, or submit your own file for analysis.