Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6fac2f2ab8ebebf…

MALICIOUS

PDF

65.8 KB Created: 2020-11-06 12:35:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d243396be280d7b226f185c35e5dc14b SHA-1: a9ef6ec8682942a6f3594c40a10f40a75bdd65e8 SHA-256: c6fac2f2ab8ebebf46a8509bba56f7bc03873fca6b183a381a07161053aee2cf
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/aws?keyword=total+drama+island+characters+with+names In PDF document text
    • https://rezivunafotete.weebly.com/uploads/1/3/4/3/134354631/bafurolaromamal.pdfIn PDF document text
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/wowasifagiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393018/normal_5fa2da871f608.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5fa4a2124c349.pdfIn PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/a31d67fb86c29.pdfIn PDF document text
    • https://gizojobov.weebly.com/uploads/1/3/4/4/134436228/jurarogexegawevawewa.pdfIn PDF document text
    • https://dokoxinizim.weebly.com/uploads/1/3/4/3/134305801/lonomuno_xipetetepizapif.pdfIn PDF document text
    • https://fevuleniwawe.weebly.com/uploads/1/3/4/4/134476097/9611656.pdfIn PDF document text
    • https://pukejuzim.weebly.com/uploads/1/3/4/4/134457080/a3d360f.pdfIn PDF document text
    • https://nokifijipuf.weebly.com/uploads/1/3/4/3/134305843/4620327.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/496d13af-fd21-486b-9b4a-41fa81299d5e/little_girls_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56e5e019-3989-4720-a1e9-08e639ddb754/rosas_la_oreja_de_van_gogh.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_off0000c469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC469 5220 bytes
SHA-256: fbbc5db301ea0b4c72c55118db984a8911f9bb1d2c08b7d26a9e5d73c458d12c
font_01_sfnt_off0000d60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD60F 10576 bytes
SHA-256: 7ae84a30b56c7fd22a59574fd47e6a44e222628abbbfbbc35b3501f5c225924c