Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8ee96f0e3419f98…

MALICIOUS

PDF

88.7 KB Created: 2021-03-23 17:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c0ea61e49f631baf1953791f6d054804 SHA-1: e555ebc31c8dad2c3c47cf9457dd9e1d1ef414d0 SHA-256: c8ee96f0e3419f98518839e57635d97bcb5eaef011f792d9aaf780a181383138
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as Pdf.Phishing.Trojan. The presence of embedded URLs and the heuristic firings related to link farms and disposable hosting support the conclusion that this document is designed to lead users to potentially harmful external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://nipisod.ru/strik?utm_term=anthony+de+mello+awareness+audible PDF link annotation
    • https://tevoletefe.weebly.com/uploads/1/3/1/6/131606261/4534825.pdfIn PDF document text
    • https://federadedeladol.weebly.com/uploads/1/3/4/6/134626130/6bcf0.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/39200082300.pdfIn PDF document text
    • http://katermore.ru/vision_pro_8000_owners_manuala1vg8.pdfIn PDF document text
    • https://nagiwudulowep.weebly.com/uploads/1/3/0/7/130775657/7839119.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/63251242749.pdfIn PDF document text
    • http://parkingtest.xyz/pozixidororowapodogefb0pl.pdfIn PDF document text
    • https://sesumevikenaful.weebly.com/uploads/1/3/5/3/135346106/b85499.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/lezozexixoneve.pdfIn PDF document text
    • http://cetakchantek.com/invicta_18k_gold_watch_price854hk.pdfIn PDF document text
    • http://construt.site/demegekavet2dcd1.pdfIn PDF document text
    • http://plsale.pro/76700576022grebw.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/aha_statin_guideline_2018.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
    • https://72cee60b-533f-4fda-9f40-87b1bb6f0553.filesusr.com/ugd/590778_5f3befc05668412e99103333ce76e94f.pdf?index=trueIn PDF document text
    • https://a161ff94-1a6f-4367-b6f8-8e513a5e676d.filesusr.com/ugd/4c7633_523febac11df4f0982fc24b034c8b941.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a88dd0d1-1bdd-4c2e-9d42-b914f90b2bc2/sofuwara.pdfIn PDF document text
    • https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_46c5bbf1764948608290aab4743238a5.pdf?index=trueIn PDF document text
    • https://318abaa7-a496-4882-a5ef-186b1d719b20.filesusr.com/ugd/ff2e65_884265929baf47d9bc44fbfcf10a8238.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/03a34864-beee-4792-bac3-d4b741100194/nususazisiwivopim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0cfbbe9-0e24-4634-a0b2-62c085a95546/55081845769.pdfIn PDF document text
    • https://667abc8f-92ca-45d9-bc9d-789c80a68858.filesusr.com/ugd/dcd78f_eba27ed0828a4547997270992a9d4c66.pdf?index=trueIn PDF document text
    • https://4d75d3c9-3a4d-4df6-84ab-e48b83d723e5.filesusr.com/ugd/cdb50c_9eb207165d8149079dca8307b8d146b5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8131e2b-7005-46fa-8b08-a4e0bbb6ec5c/fossil_q_explorist_2nd_gen_3_battery_replacement.pdfIn PDF document text
    • https://0926596c-b1e6-4473-87d6-fed2e709bfeb.filesusr.com/ugd/e2a635_bd688d62f8124f268caba54116e182b2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/eff1b0b4-8a94-43b3-bfbf-9bfb40996fed/86860305776.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBD 5268 bytes
SHA-256: 114685556534e853549dad87f775431a34d6c06f5df92c52c4691888094a016b
font_01_sfnt_off0001007c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007C 2024 bytes
SHA-256: 5d59e80714f055d0e20d1c4ed594903f00ea25dd365ddc0e243c90ca16be52db
font_02_sfnt_off00010a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A14 11904 bytes
SHA-256: f293b4e5395853db5448c05a8fefce62b2de0745c2fc8fe549ff1116b50c2873
font_03_sfnt_off000130ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130EF 16168 bytes
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8
font_04_sfnt_off000145f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145F5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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