Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc9dc8a5b465c0e…

MALICIOUS

PDF

40.3 KB Created: 2020-11-08 14:08:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 9b3c6f735a12b9647001c042af4d5274 SHA-1: d8f63366c8c522903ff697b61d9f627a338044c9 SHA-256: 7cc9dc8a5b465c0e270ba8c5fee18e659dd8d403e36d16c8dedd65a475e56fbe
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/123?keyword=hungry+shark+evolution+apk+download PDF link annotation
    • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/lujibodisu_kawoviwazazosi.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/vanixepexikadokivak.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/xamibudasagas/breakthrough_plus_level_2.pdfIn PDF document text
    • https://nofagixonuva.files.wordpress.com/2020/11/38609274624.pdfIn PDF document text
    • https://mewafibita.files.wordpress.com/2020/11/hbr_guide_to_project_management_free.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdfIn PDF document text
    • https://suvarofora.files.wordpress.com/2020/11/95519257918.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/13308178079.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/26575962248.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/daguminuforumo.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/4320178306.pdfIn PDF document text
    • https://sanifibolose.files.wordpress.com/2020/11/39951870875.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/52026980340.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/84141852215.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_off00005da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA9 5500 bytes
SHA-256: 82fb63425d150ab4ed766c16ccf8bd20c0ab3c58b557ed00ba71049f963c8dad
font_01_sfnt_off00007072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 10600 bytes
SHA-256: e5b7c2c4ccb513cf1a0f7ba474fb2cc0ef40a3d8d014de21f559fed17a464b1f