Malicious PDF — malware analysis report

Static analysis result for SHA-256 86fe0ec399149507…

MALICIOUS

PDF

74.1 KB Created: 2021-06-02 10:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: db38db034e63ae47aad9727375f4a7b3 SHA-1: 2ede6b0e4b63445aa4e21613d826565ab92dcdd6 SHA-256: 86fe0ec3991495072919207f9ae5f5e1da38c008e23ef7cc59676b505c28716e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/123?utm_term=anari+old+video+songs PDF link annotation
    • https://tosofeguwus.weebly.com/uploads/1/3/4/3/134321705/wozuvafanonom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418970/normal_60396b62c2ef5.pdfIn PDF document text
    • https://pedumodab.weebly.com/uploads/1/3/1/6/131637036/d1f982e8ff9.pdfIn PDF document text
    • https://wisetigu.weebly.com/uploads/1/3/4/3/134357320/jepizafirebuwik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_6021cbed3a38f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503214/normal_60219e565c733.pdfIn PDF document text
    • https://wuzubetimu.weebly.com/uploads/1/3/4/2/134266391/puralukotefem_susimen_kodem_giforovevazejan.pdfIn PDF document text
    • https://rinixupikexem.weebly.com/uploads/1/3/4/0/134096042/dakavep_rezebebef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500904/normal_6047e85600c08.pdfIn PDF document text
    • https://mesajenijapab.weebly.com/uploads/1/3/0/9/130969967/88cce4884eed2f1.pdfIn PDF document text
    • https://tejekukukageza.weebly.com/uploads/1/3/4/6/134662245/d7ead39c9.pdfIn PDF document text
    • https://rufuwoja.weebly.com/uploads/1/3/4/7/134735928/492941.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jijagenaneke.pbworks.com/f/zudufuzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8b7efe4-2ee3-476d-bd75-2906b866c6e2/xetixaxekefevatuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2987432e-9b46-43f6-824d-05f8422da5f9/85913129812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a99826f6-0a1b-4042-afc3-c4d9ae80018b/lokizorem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/630b2604-b136-4564-aab9-1d4d6eb8097c/66087130585.pdfIn PDF document text
    • http://kiletejude.pbworks.com/f/47547658134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb33579a-0426-4891-ab0c-96da10731895/thinking_maps_templates.pdfIn PDF document text
    • http://lakebimutep.pbworks.com/w/file/fetch/144418371/difference_between_direct_method_and_grammar_translation_method.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c65d2426-b276-4aa9-b86b-1b1ccf288f97/wupunuruzolutivivafajorus.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3BB 5040 bytes
SHA-256: c7876624ee5b09c49d868b877072c6ecf1942898431c838c85eb89db864885a4
font_01_sfnt_off0000f4f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F5 11560 bytes
SHA-256: 2d72ed908a50f76dec70581d0182beb92f03e0ff0fe0de0ee5138cc52580ac37

Open this report in the interactive analyzer, or submit your own file for analysis.