Malicious PDF — malware analysis report

Static analysis result for SHA-256 868c198540ebea53…

MALICIOUS

PDF

71.2 KB Created: 2021-02-16 17:41:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 71f2fbaa0eceffc85e34728c7240b463 SHA-1: d4f7d4d7739c3fc380bfa171452611b4f90e86f0 SHA-256: 868c198540ebea53c68464d06386c716a51ef6f4726248a65281e5dd50fbb7f7
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://leonvi.ru/123?utm_term=what+foods+do+you+eat+for+an+alkaline+diet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459029/normal_5fee41af88c21.pdfIn PDF document text
    • http://martakkord.ru/weber_spirit_ii_e-210_replacement_gratesb47du.pdfIn PDF document text
    • https://wixefonimav.weebly.com/uploads/1/3/1/4/131437632/141335a792.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/ibiiD2l/fipedusejazuxo.pdfIn PDF document text
    • https://tilifopufobi.weebly.com/uploads/1/3/6/0/136049844/kixedilaraseza_monul_rutazogumebufa_nuburasok.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383304/normal_6005f516e6b06.pdfIn PDF document text
    • https://nuxutesinof.weebly.com/uploads/1/3/1/4/131437012/02da5694b74c.pdfIn PDF document text
    • https://zolotamazuragif.weebly.com/uploads/1/3/2/7/132712333/d9b19d88.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/iiEhhij/50_games_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/9dpGBie/stack_the_states_free_on_computer.pdfIn PDF document text
    • https://cdn.sqhk.co/xagunetoxa/djehegg/wigopadazifajozaseru.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/cgeop5u/rumekubemilofozasex.pdfIn PDF document text
    • https://valutakawewa.weebly.com/uploads/1/3/1/3/131378791/3957139.pdfIn PDF document text
    • https://cdn.sqhk.co/pozigafo/shi8lyI/7503734677.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/rawesaragegugar/the_squat_challenge_home_edition.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_off0000d8f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F2 5172 bytes
SHA-256: 93b748c01cf3fc2ac48bafcc8d501cf75a5bff050e4b00549e618c89829ff257
font_01_sfnt_off0000ea9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9D 10528 bytes
SHA-256: 389d9f6390b882fb0bcdb0e58d47d41d3d101d8b1eb89174b6ad7e90363ad7e7