Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fc5496a631749e…

MALICIOUS

PDF

78.0 KB Created: 2021-03-21 05:50:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3dab2ab5b5359ec11726371104767553 SHA-1: 9c5f37ae3e7c443dd73344c91060e24cf8d780a4 SHA-256: 98fc5496a631749e97074251e2f1d65bfc0e2105052eaaeba1d107c6e3392e61
126 Risk Score

Malware Insights

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

The file is a PDF containing numerous embedded URLs, many of which point to disposable domains and are flagged as part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing or malware distribution. The presence of external URIs suggests the document is designed to redirect the user to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://soxebez.ru/wix?keyword=evaluative+criteria+refer+to PDF link annotation
    • http://lnstagramverificationbadge.com/58901467884ktjdi.pdfIn PDF document text
    • http://aycotoro0.xyz/microsoft_wireless_notebook_optical_mouse_4000_drivereabom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383340/normal_600a1462f0d68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466151/normal_5ff86dc4aedcc.pdfIn PDF document text
    • http://sunazeremitiwu.mypressonline.com/oracle_database_pl_sql_language_reference_11g_release_2.pdfIn PDF document text
    • http://rankingcoach-seo.com/xogabolizrefss.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/the_childrens_book_of_virtues_by_william_bennett.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/new_holland_lx885_parts_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/97110102240.pdfIn PDF document text
    • http://nadipewin.mywebcommunity.org/fakimavojelaweb.pdfIn PDF document text
    • http://risumeboze.getenjoyment.net/voicelive_play_looper.pdfIn PDF document text
    • http://good-production16.site/64368898038rivq8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464524/normal_605518901a0ec.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/electro_technology_n3_study_guide.pdfIn PDF document text
    • http://zitarekatinupas.sportsontheweb.net/25475081293.pdfIn PDF document text
    • http://nanonewe.scienceontheweb.net/how_to_repair_the_heating_element_on_a_dryer.pdfIn PDF document text
    • http://wdd13.ru/vumont2xyy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387924/normal_6035be93a29ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385636/normal_5fcedcd017202.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/template_border_for_wedding_card.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/66768552082.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8a833fea-7c9a-4d2e-a5a7-d3590f42a3e5.filesusr.com/ugd/9aab09_46c7e0846832466dbd2b655ab0a0d93f.pdf?index=trueIn PDF document text
    • https://ac734925-007a-49fa-9a6b-2340142042ec.filesusr.com/ugd/ea78e0_d563ddbac5a34d79810845e35c6c757b.pdf?index=trueIn PDF document text
    • https://aa700e4b-9450-4a85-8b7e-8c92ffe47626.filesusr.com/ugd/de972d_efef546b3dad4ae897cb7d2a294be001.pdf?index=trueIn PDF document text
    • http://nukilaba.myartsonline.com/sitalikadorob.pdfIn PDF document text
    • https://7c3dd69e-6649-485e-b385-36acc2971cd6.filesusr.com/ugd/cf9ff1_23311c028ab3458ca93bba978a2e7193.pdf?index=trueIn PDF document text
    • https://5e9816b5-e261-4a84-a5c7-594b6999e1c8.filesusr.com/ugd/eb2f7d_7482a690d1774215bf20dd3d620bba94.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_off0000f632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF632 4716 bytes
SHA-256: c549e5767372d80fb8b369abb1a063ad462b3574081773c0fbafa8616cef0529
font_01_sfnt_off00010656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10656 10488 bytes
SHA-256: 11df350199361f4761cb8ac4220eeae262b940c8875202c464780b5dbfb7f55c