Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d718fbcc6952e5…

MALICIOUS

PDF

73.2 KB Created: 2021-03-01 18:17:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 25255ddf7b0d8156fe4717daca60cf80 SHA-1: edc48458968dbccb5c205a0a76446cd9249c9ddf SHA-256: b5d718fbcc6952e52e964853d4df9c2828feb2a341c61d412a4ba400a57f27cc
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://gimoguvi.ru/award?keyword=ap+seminar+iwa+research+questions PDF link annotation
    • http://sapiwis.iblogger.org/jobibexojazaxamikadodiv.pdfIn PDF document text
    • https://bufibetotireguk.weebly.com/uploads/1/3/0/7/130739935/dadij-gurubezefavato.pdfIn PDF document text
    • https://zikivunebek.weebly.com/uploads/1/3/5/9/135964247/raxemonakenosot.pdfIn PDF document text
    • http://pokezokebawi.mygamesonline.org/48386452493.pdfIn PDF document text
    • http://beviluxenumiliv.mywebcommunity.org/tabela_de_integral_e_derivada.pdfIn PDF document text
    • http://winoraama.space/traditional_approach_capital_structure_theorylx0t6.pdfIn PDF document text
    • http://world-wild-shop.com/shutter_island_torrentdg1r1.pdfIn PDF document text
    • https://nenovalo.weebly.com/uploads/1/3/2/7/132712003/615339.pdfIn PDF document text
    • https://wutowenejeboz.weebly.com/uploads/1/3/4/5/134599911/vomumuxefewe_woziben_bidawikanex_limafup.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/who_has_the_best_deals_on_gas_grills_right_now.pdfIn PDF document text
    • http://natiral.space/fotos_de_caritas_felices_animadas6425z.pdfIn PDF document text
    • https://latujajadaf.weebly.com/uploads/1/3/4/5/134593938/7982454.pdfIn PDF document text
    • https://gonuxatokudegi.weebly.com/uploads/1/3/2/6/132695329/wofemogotufe.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/zunetigurorasa-suruvamojiliva-barisawinojax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fokezazonof.epizy.com/amplificateur_de_puissance.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/42248306435.pdfIn PDF document text
    • http://dafawesag.epizy.com/wudujumikinafibedapazalu.pdfIn PDF document text
    • http://xukitekebuza.epizy.com/80370111319.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_off0000e1c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C3 5348 bytes
SHA-256: a0854d406ed67f6122084ba71bb4bcdedee06b7263353e0d634e3a3bf60dbaf3
font_01_sfnt_off0000f3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3DD 10588 bytes
SHA-256: 60bcc38a33fd80403b98166c980fec1f40598ea1792e3735975b9013e3b3bc6d