Malicious PDF — malware analysis report

Static analysis result for SHA-256 111d29076f79a2f9…

MALICIOUS

PDF

43.1 KB Created: 2020-11-08 08:35:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 571e54c7d27786467a789126b9d9c5f4 SHA-1: 1e368d8e5b76689fd3ed4554b10ef18240555853 SHA-256: 111d29076f79a2f9013015ba35bfdc781b02d0704d0a160dfb759fb14583d92c
184 Risk Score

Malware Insights

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

This PDF document functions as a link farm, directing users to numerous external PDF files, including a known malicious redirector. The primary malicious URL identified is https://gettraff.ru/123?keyword=family+guy+the+quest+for+stuff+ipa+hack, which is flagged as malicious. The document's structure and embedded links suggest an attempt to generate traffic or lead users to potentially harmful content, likely as part of a phishing or scam campaign.

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://gettraff.ru/123?keyword=family+guy+the+quest+for+stuff+ipa+hack In PDF document text
    • https://mojipolizu.weebly.com/uploads/1/3/4/3/134318612/e2a2846ee714.pdfIn PDF document text
    • https://dowikonusinewe.weebly.com/uploads/1/3/4/3/134374018/1837259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_5f8fcaa0ada06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402711/normal_5f90cd4742a47.pdfIn PDF document text
    • https://nunavupogo.weebly.com/uploads/1/3/4/4/134471291/6381513.pdfIn PDF document text
    • http://ios-androidapp.com/family-guy-the-quest-for-stuff-hack-android-ios/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://lidevan.files.wordpress.com/2020/11/iron_maiden_brave_new_world_songbook.pdfIn PDF document text
    • https://s3.amazonaws.com/tefelaj/wewuso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/645a0852-baeb-4ec9-be4b-5aadb1cb103c/revarokagewa.pdfIn PDF document text
    • https://gukoxawe.files.wordpress.com/2020/11/24807084766.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f980c8eb-b4d7-4ad1-88f6-27b506b75391/jizerabexaxux.pdfIn PDF document text
    • https://fefitaw.files.wordpress.com/2020/11/64939725781.pdfIn PDF document text
    • https://pifakimep.files.wordpress.com/2020/11/fododuxuxinoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11bd2b29-2c23-4b5b-8f68-ca10d132964f/partes_por_millon_ppm.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_off00006730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6730 5676 bytes
SHA-256: d70f73a0997351aa1f88ae2b71c939263a567349a7c7d88aa67708ee1c8a4ab7
font_01_sfnt_off00007a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A68 10904 bytes
SHA-256: ea69d84c30b1a833db3d5535cf89f8c776b2813d8a0d35db857f407d354440df