Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b5b9b9d30a61b6…

MALICIOUS

PDF

69.5 KB Created: 2021-02-18 19:55:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aa6ff502b331a01c523591b6016dc26d SHA-1: dfd5265773562bd706414f8bdf3ad6dd1be2fdaf SHA-256: 08b5b9b9d30a61b6075d9c5cb0c43e92da8b687ece8e8398e732bbf2e0704bf6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/wix?keyword=words+that+start+with+wu PDF link annotation
    • https://cdn.sqhk.co/fodibaniwe/jigglij/ash_of_gods_tactics_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385876/normal_5fd9d9c06246c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501054/normal_5fcf5ed70daf6.pdfIn PDF document text
    • https://cdn.sqhk.co/suvezadamut/Xjc4u6M/63106641815.pdfIn PDF document text
    • http://domuxiwedazov.22web.org/simarofig.pdfIn PDF document text
    • https://dilozerekake.weebly.com/uploads/1/3/1/4/131452754/06c7425fd6a47d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419437/normal_600de144bbc4e.pdfIn PDF document text
    • https://dagaroxir.weebly.com/uploads/1/3/5/9/135973008/fozeronujotar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465149/normal_5fd7d7545e298.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426815/normal_602a385e7d9c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472788/normal_5fc7b129ca6c7.pdfIn PDF document text
    • https://dibapanapuro.weebly.com/uploads/1/3/0/7/130776085/wemak-dikuxoviz-gikomimufome-vuxaxiki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385636/normal_5fe2dba8cdea4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467945/normal_60204f4293836.pdfIn PDF document text
    • http://pixilipe.22web.org/animated_cartoon_maker_app.pdfIn PDF document text
    • https://cdn.sqhk.co/zipirevofu/DHTyXjg/easy_frosting_recipe_for_cupcake_without_butter.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://filopisexufage.epizy.com/zonawobegofe.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_off0000d403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD403 4988 bytes
SHA-256: 52d8be8d97fa393473575d3c574415863b0f8d47d4a979302428cf3956640b3e
font_01_sfnt_off0000e505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE505 10600 bytes
SHA-256: e0afa330814ecd21893c679ffb7fad3977f9dd626e0eab4dcd9df0916380c81f