Malicious PDF — malware analysis report

Static analysis result for SHA-256 e24b650d8fc4db53…

MALICIOUS

PDF

72.9 KB Created: 2021-03-01 13:25:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 267abd5e6d2de747af71ab57ca1b50ab SHA-1: 51062d06849172f2b9cf91c57636c4a0f3d7e9ae SHA-256: e24b650d8fc4db534f9f9966b5515634441142788720c0fc2ee22a410d18f4e1
186 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
  • 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://mezovuduw.ru/award?keyword=how+to+practice+acting+for+beginners PDF link annotation
    • https://jewakazakiven.weebly.com/uploads/1/3/1/4/131437085/sedabi-ketemutajapit-polum.pdfIn PDF document text
    • https://zapineri.weebly.com/uploads/1/3/4/7/134707132/2164794.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/73508175004.pdfIn PDF document text
    • http://mibejar.sportsontheweb.net/62014475244.pdfIn PDF document text
    • https://tewawabuse.weebly.com/uploads/1/3/1/4/131437503/pujotimona-wukikanodo-batodow-sarosigaliralod.pdfIn PDF document text
    • http://gepexoliv.medianewsonline.com/53443310113.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/tivizij.pdfIn PDF document text
    • https://vutuwibomakupir.weebly.com/uploads/1/3/2/7/132740747/tizirujegeti.pdfIn PDF document text
    • https://fanamixaxa.weebly.com/uploads/1/3/4/0/134017579/feponenodaz.pdfIn PDF document text
    • https://zekigoduse.weebly.com/uploads/1/3/4/3/134336209/9693267.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/java_8_features.pdfIn PDF document text
    • https://tezifotunojoke.weebly.com/uploads/1/3/0/7/130776805/rorup-tekifowaw.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/zetubakuz/sewudamupisepemutene.pdfIn PDF document text
    • http://nedizilunok.myartsonline.com/master_of_european_and_international_business_law.pdfIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/jorepegagijanexikara.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/21615239199.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_off0000e00f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00F 5344 bytes
SHA-256: 8c1101cea24d0aa56e27cff01c5f1d607345ff8f28a9f689f7647c8eddf393b3
font_01_sfnt_off0000f25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25D 10536 bytes
SHA-256: 610cad79c5ad3a68e4a0ce29d6ca9d37b5510acc92846fb09a0d860f09220c00

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