Malicious PDF — malware analysis report

Static analysis result for SHA-256 a49bd33c0732bbd8…

MALICIOUS

PDF

67.6 KB Created: 2021-03-03 04:48:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2649439ddddc3c1cb6fc9a037f4f1613 SHA-1: e00ffab04979f25bcc259199841e47bc47290224 SHA-256: a49bd33c0732bbd8342019284757c290a5ba2806a2da3a984c3b8637723a09cb
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/award?keyword=icse+class+1+maths+worksheets+pdf PDF link annotation
    • http://fevozogu.iblogger.org/68402031023.pdfIn PDF document text
    • http://manetebanax.22web.org/ayyappan_swamy_songs_tamil.pdfIn PDF document text
    • https://foluxafan.weebly.com/uploads/1/3/5/3/135397430/2650219.pdfIn PDF document text
    • http://microdigitalmeter.xyz/nccn_guidelines_pancreatic_cancer_20171uc22.pdfIn PDF document text
    • http://metryck.info/bopidafumejenujewukvr55j.pdfIn PDF document text
    • http://sebekeruxa.iblogger.org/como_configurar_roteador_d_link_dir_615_pelo_celular.pdfIn PDF document text
    • https://zenamuvevabun.weebly.com/uploads/1/3/1/4/131453902/semezabodiwamow.pdfIn PDF document text
    • https://kerozusokenizil.weebly.com/uploads/1/3/1/3/131383247/77102af0a629c31.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/cb7c37c480de.pdfIn PDF document text
    • http://smartcreditus.info/how_to_charge_canon_vixia_hf_r600mf3o6.pdfIn PDF document text
    • http://socialwave.me/free_movie_creator_software_for_pcjaqsr.pdfIn PDF document text
    • http://milanbeachs.space/dragonball_z_episodes_online_freemcl7n.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/pirosisob/makilizelu.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/19291943545.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_off0000cbd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD3 5540 bytes
SHA-256: 2bbf8d79b3e0387e1cecd92921069c901670436fe1a255d2f6befafc2d91b919
font_01_sfnt_off0000de9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9B 10200 bytes
SHA-256: 1b484b37413516df567bb5c54037d90be61f85e745d41dcee0bf8123cc2b8e7c