Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f19eb1bda6c6eb1…

MALICIOUS

PDF

50.3 KB Created: 2020-10-24 23:27:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3c3767392951b8593fb388e93811a73b SHA-1: b622c3243509de4f664a1f901e44704b32d28afa SHA-256: 9f19eb1bda6c6eb12fada1f2975d188457da50b809b1c1351611421cd3a1ef9c
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/123?keyword=politische+bildung+%25C3%25B6sterreich+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5f919277afb6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370737/normal_5f8ad0a9ad755.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5f889d725d7de.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/f22694.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/4169262.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/bd69b7d533724a.pdfIn PDF document text
    • https://raxabebawozovi.weebly.com/uploads/1/3/4/3/134311701/rodifam.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/gevoderovepiru.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/ee403115-9171-43f6-bdc9-d6d469b0cc3e/critical_pass_flashcards_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b0f15f1-a683-412b-9025-20f45fa6435f/wowal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55908d01-3c3c-4222-ad15-23ef7578d1d9/49905923176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ecadd38-9095-4574-941b-c6e201bce552/kuxus.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/kiwifibewex.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/15423717660.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/pdf_file_example_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4b08059-a9fd-4bae-94ed-6332e7e7165c/36192483600.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/572bec9a-a070-41f4-83c1-48860de34049/jiboganomozojurexen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8225397-1012-41d2-9505-fb3a8106a325/mr._bug_goes_to_town.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3daf7fa2-5e82-4c88-bf7a-2fdbefe245ca/58036641400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d354d73-4a01-4096-ac22-f6891bee08fc/sifetamuxekatevoxafawemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70084ef7-1a3b-41dc-9651-74317167d30c/fewitur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a9a3395-4f03-4f50-b94b-8526fffd6c98/penesexemapowumu.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_off00008008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8008 5484 bytes
SHA-256: a25a387e838bca4ea0fd60788fd7abc655a3e626f0803d28227b472cb49d00a7
font_01_sfnt_off00009265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9265 12152 bytes
SHA-256: eee874773755cf514ad0fd62dd53d7bf396488932f2efe06d943d15f43e8016a

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