Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ec2e57e59138ece…

MALICIOUS

PDF

72.2 KB Created: 2021-02-25 04:35:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f5b48903fdd08bad22daceb6db58d85a SHA-1: 44640ee67d847f570b3d1a5721a47c0a4c4d0743 SHA-256: 2ec2e57e59138ecea6ff8ef36389474c6d02677bad2e611d1dfc640e9e82c0e9
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://maypoin.ru/award?keyword=dish+network+internet+bundle+prices PDF link annotation
    • https://wefogazasu.weebly.com/uploads/1/3/4/8/134880183/8572008.pdfIn PDF document text
    • https://nekekijubexofus.weebly.com/uploads/1/3/4/5/134587401/netazoweroxofi.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/Xhgjhhc/35369311025.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/fOQxhaG/atomus_hd_apk_mod.pdfIn PDF document text
    • https://gidipefodato.weebly.com/uploads/1/3/5/3/135348522/ketevefusok_fekojulixewak_sarixuxi_ladupudusuzopo.pdfIn PDF document text
    • https://cdn.sqhk.co/motuxeneb/aF3Eyhg/wijovowejumevu.pdfIn PDF document text
    • https://kiwiwutirove.weebly.com/uploads/1/3/4/7/134707888/4281585.pdfIn PDF document text
    • https://deserekinubolid.weebly.com/uploads/1/3/4/3/134319780/popunudavafadis_rokiwis.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/que_es_ficha_tecnica.pdfIn PDF document text
    • http://sujabupinoda.scienceontheweb.net/3674645465.pdfIn PDF document text
    • https://cdn.sqhk.co/bagudivibi/R6ouvVU/warhammer_quest_shadows_over_hammerhal_rules.pdfIn PDF document text
    • https://simisodiguguvig.weebly.com/uploads/1/3/5/3/135324772/2439104.pdfIn PDF document text
    • https://simalono.weebly.com/uploads/1/3/1/8/131856945/xidogebefofam_fufufumexo_judunixinav_mugifowixil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/zaxujararokigotet.pdfIn PDF document text
    • http://nafabumawo.rf.gd/webarchive_to_converter_for_windows.pdfIn PDF document text
    • http://pidosowot.epizy.com/puninujagamitejodulov.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9E 5248 bytes
SHA-256: 9891552366a2006bac6a021ca32dfb56299ed48615e5f113e1ac09e320e5696e
font_01_sfnt_off0000ef84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF84 10704 bytes
SHA-256: 8a7df240a3411358368f0d77be32e0198e0b8ede57d83e438b0d1ca1dc16f3ca

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