Malicious PDF — malware analysis report

Static analysis result for SHA-256 e140a44c87e7ed90…

MALICIOUS

PDF

48.1 KB Created: 2020-11-05 18:48:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 4becd8df48c2f70742ce5121561cf068 SHA-1: ef0ac63767d16884ce877ea8dc6d9b058502fc6f SHA-256: e140a44c87e7ed90a83fc9e86c6b94d04818f27ca9f8d1f68d04b052a4fcfc49
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://traffset.ru/aws?keyword=putlocker+movies+2019+full+movies PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369162/normal_5f8e3c5916ecc.pdfIn PDF document text
    • https://fusefediwotedi.weebly.com/uploads/1/3/4/5/134589876/487889cfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451377/normal_5fa1fe24c1830.pdfIn PDF document text
    • https://vivazezege.weebly.com/uploads/1/3/4/0/134041722/a97373a9ff7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383467/normal_5f90b38628724.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375352/normal_5f8c1da8e3d2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379615/normal_5f950ce4360f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/db5df424-1e80-468e-b24a-6c2449e89470/pivoriw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e45bcd0-544f-48b0-b60b-dfd21b13a096/super_mario_sunshine_release_date.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/94158414355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d1086a6-6a5b-4f1a-92d8-19c45af7f414/23312542038.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ea74853-38f2-4949-aa81-684315ef9747/25766472233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fdf05e6-f025-4359-9754-ce1713054e2e/rekolav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebc8af08-3968-438c-bf0e-65a593726ffc/34319154390.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_off00007c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C21 5424 bytes
SHA-256: 52b3e10045dc79c340f7dd5449a9bbd05cbc07950bfa62d681b4b058bd97c9e6
font_01_sfnt_off00008e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E92 10948 bytes
SHA-256: bea0bcd97c940ddee8658a0e6e07f9c5528e78b4705f15e292e0241207ee7d4f