Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5649618b527f045…

MALICIOUS

PDF

63.9 KB Created: 2020-10-08 10:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e937d451ba94860e054c41f8c3318886 SHA-1: f1df0c6af4f99487cc4abcd7a71265f7ed356066 SHA-256: d5649618b527f045e23afa8349cbafcc2877b848858f843dbfbd4236c1ebe8e5
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.me/pify?keyword=indian+river+county+property+appraiser%25EF%25BF%25BC In PDF document text
    • https://site-1038675.mozfiles.com/files/1038675/gesedizi.pdfIn PDF document text
    • https://site-1037157.mozfiles.com/files/1037157/memosemagi.pdfIn PDF document text
    • https://site-1036869.mozfiles.com/files/1036869/jaremedakomasukajezi.pdfIn PDF document text
    • http://files.maryfarrfineart.com/uploads/1/3/2/6/132681891/jukuvigokivag.pdfIn PDF document text
    • http://files.mrnoftle.com/uploads/1/3/1/4/131406735/tijisiwenegaja.pdfIn PDF document text
    • http://lobese.jamiemaltus.studio/uploads/1/3/0/9/130969945/6d9d8dfa559.pdfIn PDF document text
    • http://files.clearcreekwatershedcoalition.org/uploads/1/3/0/9/130968988/tupodabin_rumujed_sosupegofekuman.pdfIn PDF document text
    • http://luwow.ramtech.ca/uploads/1/3/1/3/131380550/3468829.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/f71d9405-e677-47af-ad58-80ea6c691029/ramusobezadexix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d66d2c2e-5c19-4639-b4ed-6a1b9746f52a/gapidumafofupewojijovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08ade327-48ac-4921-8520-4dcf42f97e34/fapevipugetu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf793ac0-f756-4065-b60d-8c404ea0aa58/84107373938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d577026e-9042-4cbe-a71b-7821948cc113/kunazokagoruzunesuvuxakaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aceb83d-a330-4224-80f9-9e2485e13353/fuvofudugitigod.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE44 5024 bytes
SHA-256: b2270048128269c9e7016178d61f70cad362a345f61dee15246ddd857641a61a
font_01_sfnt_off0000bf6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF6C 10236 bytes
SHA-256: faee06a68bf67f4cf7e7d1657652854cd31174883d4c697f22fd907a39f6d7a2
font_02_sfnt_off0000e247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE247 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.