Malicious PDF — malware analysis report

Static analysis result for SHA-256 5494bea7f46f84f7…

MALICIOUS

PDF

72.7 KB Created: 2021-02-20 22:12:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8f27e82e575348e593849253e52c91c7 SHA-1: b568f5661c2acc447bb98edd45b667196991154a SHA-256: 5494bea7f46f84f777604281dd17d27f4f2363dbf51fa440b2dd1aff0cfb77c9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://seumenha.ru/wix?keyword=cushman+trackster+for+sale+2020 PDF link annotation
    • https://cdn.sqhk.co/kizulajeli/9uz5LaZ/92573180323.pdfIn PDF document text
    • https://cdn.sqhk.co/patemugimej/Vjbv3if/custom_cast_iron_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389601/normal_60295473d3a46.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/iagcewA/96531264871.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391623/normal_600127da1576a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389090/normal_602aa7f7ce9b1.pdfIn PDF document text
    • https://cdn.sqhk.co/moxoxitij/jiheLie/9414045256.pdfIn PDF document text
    • http://gupozatu.22web.org/bollywood_movies_in_mp4_by_filmywap.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/uheigE6/faguwa.pdfIn PDF document text
    • https://cdn.sqhk.co/vizelupavew/YAih3ja/bewivunaka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388293/normal_60260efd15e23.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/tuzamada/retirement_income_calculator_spreadsheet_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/a_great_big_world_younger.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/jawifijiwokegedomedojusi.pdfIn PDF document text
    • http://vominobig.rf.gd/how_to_reset_sony_mex-n5100bt.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/rarasulapilusotolutubisa.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/nusulujesatobimuvodin.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/febirole.pdfIn PDF document text
    • http://zabuzuko.epizy.com/47492584585.pdfIn PDF document text
    • http://galikamot.epizy.com/63845290408.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_off0000dfa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA5 5364 bytes
SHA-256: 81df6f7b322dfb7a2c22521563cc8f87b30e5bb2c0a67f2fdf350283fe556ac1
font_01_sfnt_off0000f1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AE 10624 bytes
SHA-256: 8b424eeb73d3e921cdfb474e36b4d8e644d0d5ba877a2a151ec5981fff83af0b