Malicious PDF — malware analysis report

Static analysis result for SHA-256 127126fba623c39d…

MALICIOUS

PDF

42.1 KB Created: 2020-11-07 03:56:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3409b19fbd2aa89a4f9b430a2f007878 SHA-1: 8ea04f0eacab0a6c4499880a6f555e515e1f32e4 SHA-256: 127126fba623c39d1a3df32a18b0bd0ec6ca7b996ec724b7ecad00a4edb38b91
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/123?keyword=maytronics+dolphin+manual PDF link annotation
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/93049f265a0000.pdfIn PDF document text
    • https://jorimedazaget.weebly.com/uploads/1/3/0/7/130738946/fifizapa.pdfIn PDF document text
    • https://vunolevakedo.weebly.com/uploads/1/3/4/3/134317922/nuzisuvape.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/2692329.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://tuxabavijig.files.wordpress.com/2020/11/37940387668.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/68789073348.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d48423f-443c-45c1-acac-1dce81b50e5b/37649993847.pdfIn PDF document text
    • https://fefitaw.files.wordpress.com/2020/11/64939725781.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/fazeligukimegasepuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/download_sbi_atm_debit_card_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/pioneer_elementary_school_402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9b2c4f2-ed78-41dc-a804-872ebe40afa9/traveling_nitrogen_passport_activity_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/61627347934.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/bulats_speaking_test.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_off00006518.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6518 5420 bytes
SHA-256: c6d33beec9bf6991eb7625df80671e04402d1d4f43a8312fe11261f97d83f502
font_01_sfnt_off00007772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7772 10540 bytes
SHA-256: 0d594ff8f161f4e2192841188ab8cb5ae5b9b9e9a95f3636705a23de3929a20e