Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a86e9e01d75fb62…

MALICIOUS

PDF

71.1 KB Created: 2021-03-04 22:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f368349627f54c7482c8e35efb73e70a SHA-1: c38ae43553e9cddde0830deb84a63f1eda1fa88a SHA-256: 8a86e9e01d75fb625c43c2a1800f5a0cea644df202188285d7d8c8a029234ca8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://druttle.ru/wix?keyword=taladro+manual+truper PDF link annotation
    • https://fifukujujaki.weebly.com/uploads/1/3/2/6/132680890/8291821.pdfIn PDF document text
    • https://cdn.sqhk.co/gilubibawi/iyhddjh/archery_tournament_scoring.pdfIn PDF document text
    • https://zopogunonezaso.weebly.com/uploads/1/3/1/6/131637395/83c7d69e04a33.pdfIn PDF document text
    • https://cdn.sqhk.co/vunalogivefu/hdjajdN/sustainable_development_goals_list.pdfIn PDF document text
    • https://wejobufobugof.weebly.com/uploads/1/3/5/3/135348322/magudenimiw.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/mibosoxujefola.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/djjAGgd/cross_borders_solutions.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/ATZiejd/gunship_battle2_vr.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/fapaga/nawag.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/emulator_android_untuk_windows_7_ultimate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d60fbcca-43e0-43c5-b088-982d798041f8/world_sandwich_day_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f25fa54-4105-467c-90e5-83ae9d6f47f9/all_my_sons_moving__storage_of_dallas_llc.pdfIn PDF document text
    • https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_b31a6a0bfc3a488ea5ac0a1d4fa1170d.pdf?index=trueIn PDF document text
    • https://41be308f-8a64-4dec-8b30-4937605be974.filesusr.com/ugd/f042fe_26e5afd0f3364c98937c3b8fbd80c70d.pdf?index=trueIn PDF document text
    • http://xesepodine.rf.gd/aide_familiale_formation_verviers.pdfIn PDF document text
    • http://fufajapikimideb.epizy.com/wudizikigaferipexunawibud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61b72814-b9bc-41ef-9bac-9ab2af28635a/boluraxofiwusomutibu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dc089cb-c3dc-48a6-ac2c-abc675535080/wooldridge_econometrics_solutions_6th_edition.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_off0000d3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D7 4876 bytes
SHA-256: bb2c2e851038afdd1b8cd2e06a5ffd078abb2bd2e29fefb8a77ada46c7d04add
font_01_sfnt_off0000e450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE450 13812 bytes
SHA-256: 9223d0949b8ae2337c50400bf8b1d14ea0f22a9556b8bdbb0f63f2d28b9c9a52

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