Malicious PDF — malware analysis report

Static analysis result for SHA-256 d335b9213739c7c0…

MALICIOUS

PDF

42.0 KB Created: 2020-11-09 01:44:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: ee067c52a31d064dfa09784530bb4ec9 SHA-1: 71a8fb03ee6d68e718e842575f2c91843cc413b3 SHA-256: d335b9213739c7c0445fad1d8540f88dba4184f8face4d653dee42de451fab6b
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=jesus+among+other+gods+study+guide+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407299/normal_5f9cd44286279.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/f390996b3af2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373985/normal_5f91ce8eda39a.pdfIn PDF document text
    • https://sazalilo.weebly.com/uploads/1/3/4/5/134592982/e80cc260d.pdfIn PDF document text
    • https://bajewenizuku.weebly.com/uploads/1/3/4/4/134475359/mugizelavugonin_vixinutiwusu_tugotafupavezir.pdfIn PDF document text
    • https://pafazemewo.weebly.com/uploads/1/3/4/5/134517711/fe4b1.pdfIn PDF document text
    • https://sebonegipuwi.weebly.com/uploads/1/3/4/1/134108682/palexes_nevaviligene_vovesuvibijonad.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/sazariwapa/class_10_maths_all_chapter_formulas.pdfIn PDF document text
    • https://waraxonevej.files.wordpress.com/2020/11/college_physics_knight_2nd_edition.pdfIn PDF document text
    • https://zolikaf.files.wordpress.com/2020/11/xuriziretigupubovaziduzob.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/66424548728.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/xanthars_guide_to_everything_races.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/how_to_pair_logitech_keyboard_k360.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_off0000633b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633B 5516 bytes
SHA-256: 8f56ff28de9bef30c40d833d31499a4bd62e4c33d3a4f48b1a7d0db119409a8b
font_01_sfnt_off000075d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D7 11036 bytes
SHA-256: 18e193bf3b3bcc1f50946d4d57b6c6c0d06d3ee254af10d9397d6422655733ba