Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e17f256a25a1eb…

MALICIOUS

PDF

80.3 KB Created: 2021-03-18 16:44:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 273d3930ed21b7bd6c9722613d18f81f SHA-1: 79addfc05de072b557ff0fc958f1fa53f4042bc4 SHA-256: c0e17f256a25a1ebc3eaf7ec687be8f9d115315a93b6a4283bc2e209d308fa41
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious content. It contains numerous embedded URLs, many pointing to disposable or unknown-reputation domains, suggesting a link farm designed to redirect users to potentially harmful sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights the nature of these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://xajibur.ru/wix?keyword=granite+outdoors+baitcast+reel+manual PDF link annotation
    • http://nevinidonet.mywebcommunity.org/margaritaville_machine_key_west.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373516/normal_5fdff7c204cdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382430/normal_602d69c5b2b66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445737/normal_600363ed60ade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410013/normal_600cf1563ff3e.pdfIn PDF document text
    • https://nubokulusavabum.weebly.com/uploads/1/3/4/7/134702007/kuzadeledi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370540/normal_600026b68ba5d.pdfIn PDF document text
    • http://lofeboxirav.iblogger.org/cant_stop_wont_stop_powder_foundation.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426828/normal_604e3ce491e55.pdfIn PDF document text
    • http://suraneb.scienceontheweb.net/how_to_take_better_pictures_on_iphone_xs_max.pdfIn PDF document text
    • http://sigixexizo.sportsontheweb.net/action_words_flash_cards.pdfIn PDF document text
    • http://gonunimob.iblogger.org/50506431365.pdfIn PDF document text
    • https://tasitonedilegu.weebly.com/uploads/1/3/5/3/135301248/wisepobagowoxoso.pdfIn PDF document text
    • https://siwizapetodid.weebly.com/uploads/1/3/4/0/134041585/kigawedorusaxir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vivemowirarok.rf.gd/making_tax_digital_xero_guide.pdfIn PDF document text
    • http://navezep.epizy.com/fajigaru.pdfIn PDF document text
    • http://livikunaxexo.rf.gd/86367290062.pdfIn PDF document text
    • https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_c627fbe029ec4ff08d59cbe29519eea9.pdf?index=trueIn PDF document text
    • https://d992f69e-bc5b-430a-92d7-abfd66d0380b.filesusr.com/ugd/6f7357_f71aaf4bb4ae4920a0e3b35d09001b68.pdf?index=trueIn PDF document text
    • http://vekamodadon.onlinewebshop.net/85491023765.pdfIn PDF document text
    • https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_029ed8f2edec4b20bd459d7eee03dc54.pdf?index=trueIn PDF document text
    • http://zogoxuf.atwebpages.com/kirajegozopi.pdfIn PDF document text
    • https://91c7bc9f-df77-4dbd-ae51-8bcf521f3e61.filesusr.com/ugd/1df9ea_35721f3bd7c247b09982cee09c662f43.pdf?index=trueIn 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_off0000fb01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB01 5256 bytes
SHA-256: e7b78c521bf1b9b795d04804175fc6bb8b6a7427926b5b41059c06110a88b8bc
font_01_sfnt_off00010ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCB 11488 bytes
SHA-256: 4d169babbd6f2437ad4b99a57a482d5bea97e07b0c56a1398145ec4b696a067e