Malicious PDF — malware analysis report

Static analysis result for SHA-256 b82d3252128fb854…

MALICIOUS

PDF

117.9 KB Created: 2021-03-06 13:04:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 357d18c959187badab340303cdafe423 SHA-1: 246442cb2a25c90970200aebea86259c43438c70 SHA-256: b82d3252128fb854eefcd6774e142a3d475a6aa75e9001201f44d90089116b7e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating it is likely a phishing or malware delivery attempt. The document contains numerous external URLs, with one prominent URL pointing to 'https://jumiwimov.ru/123?utm_term=nra+gun+range+safety+rules', suggesting a lure to a malicious site. Although no scripts were explicitly extracted, the PDF structure and the presence of many links on disposable hosting indicate a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/123?utm_term=nra+gun+range+safety+rules PDF link annotation
    • https://negowuvezesat.weebly.com/uploads/1/3/4/8/134859399/4454173.pdfIn PDF document text
    • https://kipunelikerave.weebly.com/uploads/1/3/0/9/130969086/sivizujenemetunura.pdfIn PDF document text
    • https://cdn.sqhk.co/bobimugura/4ggKujj/8661542502.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/why_is_my_smoke_alarm_chirping_after_changing_the_battery.pdfIn PDF document text
    • http://porizaritofo.mypressonline.com/metal_gear_solid_3_pcsx2_settings.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/dNqxhdf/53218872427.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/jRYWwhh/turbo_racing_3d_game_hack_version.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/saram.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://labinugekifuv.rf.gd/hdfc_home_loan_application.pdfIn PDF document text
    • http://zasufogokalo.rf.gd/53943184127.pdfIn PDF document text
    • http://zijodere.rf.gd/73385119764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef440b9e-4cf9-4881-9a39-05fa6318af32/lekufeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42a8ed78-1386-45c4-adee-beb14b76ca7c/dapple_weenie_dogs_for_sale_in_texas.pdfIn PDF document text
    • http://fomixododib.epizy.com/klipsch_promedia_2.1_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d92e90fb-13bb-448c-91f5-9645d6ccba19/46582555675.pdfIn PDF document text
    • http://godarujugil.rf.gd/rowowug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ed15d7d-e922-4e64-97e3-78b168b32899/the_great_cosmic_mother_wikipedia.pdfIn PDF document text
    • http://nowavef.epizy.com/boat_bill_of_sale_form_ny.pdfIn PDF document text
    • http://vufatemosoduv.epizy.com/side_menu_ecommerce_template.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00018d3b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18D3B 27136 bytes
SHA-256: 874e8de4e2dd5844276bc1afe39d8f6c08d47b96f29272c33922bedb1babb3bf
font_00_sfnt_off0001570e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1570E 4732 bytes
SHA-256: 506115d524b0049b9405f7d88f2521a4755f30d015a33369f836165ce84c2732
font_01_sfnt_off00016738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16738 11064 bytes
SHA-256: b8ae485100f6fee98cbd24481ab72678dd34e0b60610df8e37a1b17b45e01e27
font_03_sfnt_off0001bbae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BBAE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c