Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a3d0d1916ed9a0…

MALICIOUS

PDF

45.2 KB Created: 2020-11-06 16:39:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 582c606116ff328e4da70dcbb7662139 SHA-1: 11e2c0b09ebf14ca9eb08c7e8c0b4c62acb9d451 SHA-256: 62a3d0d1916ed9a00463d02dfe57bf6bbcbddb3c68c513ed6ab6d3ae295feab3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=manual+roti+maker PDF link annotation
    • https://lejomibis.weebly.com/uploads/1/3/4/6/134657815/1847762.pdfIn PDF document text
    • https://lalonofinesuver.weebly.com/uploads/1/3/4/4/134442061/xufoseralofovan.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/1735007.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/movew.pdfIn PDF document text
    • https://zevamomarage.weebly.com/uploads/1/3/4/6/134611313/3f5d2c3.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://manetomimexa.files.wordpress.com/2020/11/lugotorizereziwatogukomak.pdfIn PDF document text
    • https://masugawab.files.wordpress.com/2020/11/bonafozirofodaxatodixo.pdfIn PDF document text
    • https://wotenopofe.files.wordpress.com/2020/11/budixaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae84385e-22b8-4503-820f-4644a8fd99d5/loxeziv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a050b2-d9bf-4e69-8570-5e371df9cec8/lexufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e1dbb95-6a1d-4e9d-b364-3eb57952bc8f/pangea_puzzle_worksheet_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/microwave_engineering_pozar_solutions_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/hp_photosmart_printer_manual.pdfIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/gopiv.pdfIn PDF document text
    • https://xejigavo.files.wordpress.com/2020/11/waters_acquity_sample_manager_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E2 4604 bytes
SHA-256: e8f5e4d065aa054b7e47c15f09cf4adc6dad2d2c30ce4b25823f89fc66ca9bfe
font_01_sfnt_off00007666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7666 10064 bytes
SHA-256: cde1b8373baf61ca72eccb0544443e1409bc3d49f64f2a86ede348612ee4c7f8
font_02_sfnt_off000098bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98BC 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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