Malicious PDF — malware analysis report

Static analysis result for SHA-256 4caa0b83b08d3bc8…

MALICIOUS

PDF

56.4 KB Created: 2020-11-06 21:57:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 0d513ad81e4c7c5d00ea29b983b1cf07 SHA-1: ef4ca526071e0e0d853380f12505fe13d7a23d16 SHA-256: 4caa0b83b08d3bc8af8c7aab5ac0a39b0d8482fe14da26460c332e567f300f6b
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, cctraff.ru, which is designed to lead users to potentially harmful content. The embedded URL, 'https://cctraff.ru/aws?keyword=transformers+3+online+movie', is presented in a context that suggests a lure, likely to trick users into clicking and visiting a malicious site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://cctraff.ru/aws?keyword=transformers+3+online+movie In PDF document text
    • https://cdn-cms.f-static.net/uploads/4411480/normal_5f947bb24861a.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/kakekojezutok/calculus_early_transcendentals_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/fuxavupigivu.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/vezadikexi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20b8d0da-a2e5-47bd-9612-6b418ffcc78d/vexoxevodalumexibes.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/summer_waves_pool_pumps_at_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/nike_lunarglide_womens.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/house_of_lloyd_christmas_around_the_world.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/48200353721.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5d9b782-d185-4237-a103-f6c123a0a8c4/kitejip.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/campbell_biology_in_focus_2nd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/excel_heat_map_graph.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/calendario_serie_a_18_19_sky.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/79142944762.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_off00009ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA3 5088 bytes
SHA-256: 8b6e40f99be325bd72831a229135acff23e8870ca108347927200ee263af32da
font_01_sfnt_off0000afdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFDD 10956 bytes
SHA-256: 12434245737ad14b12a03dd6f3c9430fb0d63c216b4843edc453819a7953964b

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