Malicious PDF — malware analysis report

Static analysis result for SHA-256 c79de6d5616bf893…

MALICIOUS

PDF

40.8 KB Created: 2020-10-22 21:11:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 58810d26623d0d4ef4736aa65a55d609 SHA-1: 94acddb65fa94e44c27e13cfeef369d88e37b619 SHA-256: c79de6d5616bf893979796e06c3555af21978f5a049202b9e774caa1cf258d68
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://gettraff.ru/pify?keyword=absolute+value+worksheets+graphing In PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/2981816.pdfIn PDF document text
    • https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/tozosejobagof_zebetawelirobax_kegetugoliw.pdfIn PDF document text
    • https://mujunoba.weebly.com/uploads/1/3/2/6/132682006/2817941.pdfIn PDF document text
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/jezebojogavabiruk.pdfIn PDF document text
    • https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/roxukek_gatizi_wotuzakeri.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/9595517.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/govorikepudago-gixidawele-wawep-xoxebilepadevu.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/3585070.pdfIn PDF document text
    • https://gadigode.weebly.com/uploads/1/3/2/6/132680949/3887083.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/tebuwimemepure.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/02c52154-a57b-4220-8614-7fdfa58f5131/10701929764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00ed52c1-2af5-41b3-a05a-d55d6f739089/kamuretekikosewetu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05048680-17e0-4fb2-98f0-85d76342a551/rawifudutefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2693/2124/files/beginning_latin_poetry_reader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2412/4573/files/lesebidufirurabomopeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3626/9470/files/waxigiferezebux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42d11523-c651-4d51-96cf-52bb9bc01241/poveguzafaxotusizosena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f6ac3d4-79dd-4694-a8b9-bb45919b973f/53914080449.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ac9ff0f-e7eb-4a0f-a0e2-a52da7792245/24731164970.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_off00005f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F20 5424 bytes
SHA-256: 6ea4a6c1aa1f6ac555a016bca1c411ea54731754438b2a192af358008c05b480
font_01_sfnt_off0000719b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719B 10696 bytes
SHA-256: fe0a68fa4e9a96618782d1e24163d6574062b4716f2b6a9069e63b0cd9d5e835

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