Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6be1f406af7b4cc…

MALICIOUS

PDF

70.4 KB Created: 2021-02-11 22:59:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f1c0b056026f61625accd9925b37e00c SHA-1: c06ff4f7006ed686785003a46def9c4e9edbfb98 SHA-256: f6be1f406af7b4cc037ac047550649180c17ab3e130c2fe384213f95edf4b754
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://crophysi.ru/wix?keyword=spring+valley+band In PDF document text
    • https://subafoxa.weebly.com/uploads/1/3/1/3/131379179/rokaxox-ninafivep-kaminilorepaw.pdfIn PDF document text
    • https://gimoxawoja.weebly.com/uploads/1/3/1/3/131380550/nezixoxora.pdfIn PDF document text
    • http://pefuwujoxuroj.iblogger.org/88923836399.pdfIn PDF document text
    • https://sibuvavaxo.weebly.com/uploads/1/3/2/6/132681946/6000720.pdfIn PDF document text
    • http://garant-ritual.online/dumapezr38l.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://genividi.epizy.com/autobots_reunite_song.pdfIn PDF document text
    • http://dudolisimak.epizy.com/kafud.pdfIn PDF document text
    • http://vurisadazuxe.epizy.com/crystal_report_with_dataset_in_c._net.pdfIn PDF document text
    • http://zapudeni.epizy.com/kaxufokuxat.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/17063298439.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/leadership_skills_for_project_managers.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/animasi_power_point_thank_you.pdfIn PDF document text
    • http://dusipesubabaf.rf.gd/577963467.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_off0000d6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6DF 5352 bytes
SHA-256: 06efa3083ad28f262a5335472d8dfae22a18a9e7b2d8186b3dbb9eb472e1f002
font_01_sfnt_off0000e929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE929 10560 bytes
SHA-256: 94102f70111321bda3547687ae87d08d7b37bc3d1d8b3ba52a787fe3363cf2e2