Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d6104617e0ee25…

MALICIOUS

PDF

44.8 KB Created: 2020-11-01 10:03:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fad179a6323bfe2608315bb7de104d3d SHA-1: 5f9df9e4005b5b82d09cdd9d88457e3c94d1b0c4 SHA-256: 10d6104617e0ee2520d4713a288cbe3f2c1083f139541c56b05395469266b7ec
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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.cc/123?keyword=facetime+app+free In PDF document text
    • https://kadamoxezegawuf.weebly.com/uploads/1/3/4/3/134347408/1f4d1c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367644/normal_5f8c1c2fa46fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385614/normal_5f8ed44ba8426.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f897a8868165.pdfIn PDF document text
    • https://fulojozizarotuv.weebly.com/uploads/1/3/4/3/134318677/dunotorivep.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/2c1e745a4853.pdfIn PDF document text
    • https://veforolafumokiv.weebly.com/uploads/1/3/4/3/134340642/fekanofominara_paguvumole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_5f8dc757edab7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443326/normal_5f9d37aae3548.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417675/normal_5f9cafbfc0831.pdfIn PDF document text
    • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/bajaxu.pdfIn PDF document text
    • https://jijalasigode.weebly.com/uploads/1/3/4/3/134344414/7804110.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/lanadez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/2627/2415/files/terunupesupiruzikafaz.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/pulejojazusonujazep.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_off000073bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BC 4908 bytes
SHA-256: b592ab127b385ad6a465a3ed90382348527ae4e02014b4c60333e5ca6c828a75
font_01_sfnt_off0000845d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845D 10068 bytes
SHA-256: aa4c617963e18b8a01a1345ef6937f76ce3c935ed2366475c8329657039ec8c9