Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d62f2859daa8f8e…

MALICIOUS

PDF

68.7 KB Created: 2021-02-23 08:50:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 63d650febf5a5e9b5289eac74d3ecb11 SHA-1: 71184c16b0a5464660ac924c52082ecca36846ee SHA-256: 3d62f2859daa8f8ef49313445fc7d2d95f5abafe7476afc62c18471448baaa33
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=shell+shocker+unblocked+io PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4376869/normal_5fe4e91cd9cca.pdfIn PDF document text
    • http://dorightpress.com/picsart_photo_studio_collage_maker_downloaduydm8.pdfIn PDF document text
    • http://trenketo.buzz/93368491266nquti.pdfIn PDF document text
    • http://hdsamara.ru/is_a_customs_form_needed_for_apo_address5oc20.pdfIn PDF document text
    • https://fezadegijowazon.weebly.com/uploads/1/3/4/0/134096780/567b6cb75d1ce64.pdfIn PDF document text
    • https://piziwola.weebly.com/uploads/1/3/1/3/131382430/832359.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc90d6c443b6.pdfIn PDF document text
    • http://thelandofbadideas.com/automatic_guided_vehicle_systemssmfue.pdfIn PDF document text
    • http://tacfitproducts.com/casio_f-91w_manual_downloadzheo5.pdfIn PDF document text
    • http://wownatural.fun/what_is_a_grimoire_crossword_cluemjx9f.pdfIn PDF document text
    • https://pesenulowujef.weebly.com/uploads/1/3/5/3/135325158/wiresomogonu_vuwopotapod_tasozovopojozew_lananaxemux.pdfIn PDF document text
    • http://j3vnci4.xyz/89266889886m4g7q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD220 5124 bytes
SHA-256: 2b5aa9b59aee678d3ad1db561585d99c1ef22c50a2d28d3f17d91feded3a4f6e
font_01_sfnt_off0000e384.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE384 10184 bytes
SHA-256: 868011270da81e3922ad4bec28ea8b6d877458f4fe164ccda503d564387e80fc