Malicious PDF — malware analysis report

Static analysis result for SHA-256 076ebecd1b370bbf…

MALICIOUS

PDF

41.2 KB Created: 2020-11-07 21:21:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: fc6a8496864465139dc402d5f2426dad SHA-1: ec95b7254e30df904e2f9d4d96a728b9d9834bc9 SHA-256: 076ebecd1b370bbf860cf4067fc840def2d03fc95385c8773f74c4bf40ccc789
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for 'mx player apk file'. The ML classifier strongly flagged this PDF as malicious, and the embedded URL points to known malicious infrastructure. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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=mx+player+apk+file In PDF document text
    • https://vapufubewadul.weebly.com/uploads/1/3/4/4/134485241/kubegut_bonulorovapu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370543/normal_5f923c07aea51.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/mapoje-pujetizovim-juvopejonijumug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375517/normal_5f93490e60711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f8a808e56260.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380210/normal_5f93cca4a6cce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_5f953b6cc1919.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372985/normal_5fa6c1252dfac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413455/normal_5f9f250daad3f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vozunoba.files.wordpress.com/2020/11/nepawuzudadiledax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73eaee83-07b7-4193-8c6d-4add241034f5/keto_recipe_book_big_w.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/zonation_definition_geography.pdfIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/gopiv.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/megaposaxivurarumekurowa.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/emergency_preparedness_merit_badge_answer_key_2019.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_off0000639b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 4956 bytes
SHA-256: 9513b4ef74d7fc65fd823a657cdd1daf9ece6b6145ab07beb419f9073bc1ba5d
font_01_sfnt_off000074a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A8 10384 bytes
SHA-256: df82f6d9eada4f4fce7a84b55a01b36b12d998d894acd1415e1912bf191e2b92

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