Malicious PDF — malware analysis report

Static analysis result for SHA-256 2651838dc6e7bbca…

MALICIOUS

PDF

75.8 KB Created: 2021-03-05 16:46:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: fe557028ba056be5a6104504d7af6403 SHA-1: 501dce6f8cb610788889169e5a2f826d3f426d42 SHA-256: 2651838dc6e7bbca76a74e786973c2117802e0534bb77eb29192884bf867a27a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://vilenefex.ru/wix?keyword=mtg+arena+android+tablet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4500429/normal_5fc9aaed38fe4.pdfIn PDF document text
    • http://usejus.pro/mixing_and_mastering_free_software6qpiv.pdfIn PDF document text
    • https://zosifoke.weebly.com/uploads/1/3/0/8/130813504/9ffa4faef3.pdfIn PDF document text
    • http://loginwithfb.site/kivobawizazelag634j1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423431/normal_5fe060c221dea.pdfIn PDF document text
    • http://tranquils.space/51791786564ad3nz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476952/normal_6008d57c351c4.pdfIn PDF document text
    • https://dagigofeno.weebly.com/uploads/1/3/4/8/134887245/xabakasavo.pdfIn PDF document text
    • https://zudomizat.weebly.com/uploads/1/3/5/3/135308615/sugumixureta.pdfIn PDF document text
    • http://amst-watch-v1.club/please_find_attached_information_you_requested7ugb7.pdfIn PDF document text
    • https://woxoxoba.weebly.com/uploads/1/3/4/8/134893248/6084588.pdfIn PDF document text
    • https://favipipuwebex.weebly.com/uploads/1/3/5/3/135397367/vajobebawoweve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5add668-18b3-4671-b9d4-34901c8520a5/what_is_meant_by_non_collusive_oligopoly.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db312d01-e895-4ae5-a1b0-8476732c054b/borevedupavosuv.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/18850882978.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/gefopepemixejo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6220a0d8-213f-4772-8680-96a4b1c9c881/what_is_a_self_service_store.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f07321f7-cda8-49e8-b051-6b34d253b5bc/52538079770.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_off0000ec07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC07 4960 bytes
SHA-256: a49ce6032c019d9a163db2166da2aaad5567bdf189de517b27f2c42af19f2910
font_01_sfnt_off0000fcff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFF 10920 bytes
SHA-256: 4208074f82fb10caeb271a4d5a2f8bf8c7a010d03d362bb5e3aacdf044e7c9fc

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