Malicious PDF — malware analysis report

Static analysis result for SHA-256 afca8aa9dbfba7d7…

MALICIOUS

PDF

72.3 KB Created: 2021-03-12 00:14:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b8a6fe2b940c6f81b8938f3394e44a6a SHA-1: f30e3ed26246e95f695893c2225413c5e143d6a9 SHA-256: afca8aa9dbfba7d746f677383dadaa7ea879689853d237883e74cc13584d4a05
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://golowaki.ru/wb?keyword=lather%20and%20nothing%20else%20theme%20statement PDF link annotation
    • https://luzenesezenobo.weebly.com/uploads/1/3/5/3/135307250/501186.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/XicxbWk/92883214337.pdfIn PDF document text
    • http://sifaritube.sportsontheweb.net/eligible_curtis_sittenfeld_read_online.pdfIn PDF document text
    • https://sanijala.weebly.com/uploads/1/3/4/8/134889677/tawuxobebapakun_nowuse_junakufikivuw_busapi.pdfIn PDF document text
    • http://jabewes.medianewsonline.com/how_to_scan_a_picture_on_hp_officejet_4500.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/jjfI1gc/49624603059.pdfIn PDF document text
    • http://jivusibofonefud.mygamesonline.org/80087351876.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/pdBggje/fesiligaguz.pdfIn PDF document text
    • https://lupuxamugegudi.weebly.com/uploads/1/3/4/6/134623484/6419460.pdfIn PDF document text
    • https://fasanubuxa.weebly.com/uploads/1/3/4/7/134733786/pufured_wufipe_dixixo_lovugari.pdfIn PDF document text
    • https://gavuwexis.weebly.com/uploads/1/3/4/7/134772394/saxesalugajija.pdfIn PDF document text
    • http://tapopapebesawu.getenjoyment.net/accutire_ms-4021b_battery.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://38f9ccf9-db33-4582-994d-0ea518e52d38.filesusr.com/ugd/368de4_0946d618aaa1408fbe956764167e504f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/binomische_formeln_mathe_song_lyrics.pdfIn PDF document text
    • http://gixejemazob.myartsonline.com/allahabad_high_court_judgement_order_download.pdfIn PDF document text
    • http://filosoko.onlinewebshop.net/riwika.pdfIn PDF document text
    • https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_3aca540f9e194259bdebdc57a4b81fb9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/how_to_restart_ipod_without_home_button.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_off0000e050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE050 5180 bytes
SHA-256: 8f9f4f7071a24556b8e4b82502be9b207e8d8ea2e9f93988c04cd21b914bb627
font_01_sfnt_off0000f1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C9 10164 bytes
SHA-256: 74e962e8b6bffc7cc77e7b1461e46f5a6cb2e5c9547677e417e5bb0a736795fa

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