Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65e24dcfbba53eb…

MALICIOUS

PDF

59.2 KB Created: 2020-11-10 07:35:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 745c02715a511adee3d1ea16ad47b241 SHA-1: c49c30cac5cab6e7c5161ef9c1fc711ed05fb531 SHA-256: f65e24dcfbba53eb5bf6c7fee38165fc82549a8fda11314f41049d78fe32cb40
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffi.ru/aws?keyword=como+en+el+cielo+elevation+worship+lyrics PDF link annotation
    • https://vovufopoxin.weebly.com/uploads/1/3/4/4/134466437/relosodulezesitid.pdfIn PDF document text
    • https://taruzabob.weebly.com/uploads/1/3/4/4/134493447/gubajasimoxegoweruki.pdfIn PDF document text
    • https://riseriku.weebly.com/uploads/1/3/4/5/134585500/wagagimibeve.pdfIn PDF document text
    • https://pewoxunoxosizix.weebly.com/uploads/1/3/4/3/134318290/57c81db.pdfIn PDF document text
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/c3c753ffb92be5.pdfIn PDF document text
    • https://xijanejomasug.weebly.com/uploads/1/3/4/5/134506458/dusarof_zolerabevaforez.pdfIn PDF document text
    • https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/nalanepefufela.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/44407139274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4746f035-d5e1-4376-be7c-426e4d87417c/lovusuravupe.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/18464878757.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/bayer_weed_killer_for_southern_lawns.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e095320a-1a9e-4d01-aeea-f5f6af419afe/53929980338.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cfee4f7-ed7b-4f78-8806-d007e00fffa7/93884850602.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/067133ca-349e-4f65-8909-c056e8cf0bae/subject_verb_agreement_worksheet_2nd_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f0daf0d-7618-4280-9df3-2c6b85bcd00a/musica_ever_bari.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_off0000aded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADED 5332 bytes
SHA-256: a310f2ef43a314ceae6b7097ea8421ee88efd7bd785101609d4c50bc79f545b1
font_01_sfnt_off0000bff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFF8 9324 bytes
SHA-256: 53cc9f66b4e04c64c328a44d1cb6ea378fcd95cb4baff3e6d75d9836d353682a

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