Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c42fcf26f6a0bbd…

MALICIOUS

PDF

67.8 KB Created: 2021-02-23 00:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3ac1900738c6e68ccaa38c927e24e4c6 SHA-1: 5364fefdbdedb87837bce9698c77de46289d1245 SHA-256: 5c42fcf26f6a0bbdebba087cfbae193b39a11c20cebf87d4bdd9c0ea204b994b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=shutter+island+pdf+gratis PDF link annotation
    • http://genokoti.iblogger.org/72458124000.pdfIn PDF document text
    • https://kinigapiluxuke.weebly.com/uploads/1/3/4/8/134863840/092da7ea0a7076.pdfIn PDF document text
    • http://burovaboxesomu.iblogger.org/75535512781.pdfIn PDF document text
    • https://tufuziboserivu.weebly.com/uploads/1/3/1/6/131636644/78d95f1316bcffa.pdfIn PDF document text
    • http://mkuu.club/deu_document_separator_sheetbaa21.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/bozeduvib-tedekapup-lisobitulix.pdfIn PDF document text
    • https://xovigojimere.weebly.com/uploads/1/3/4/8/134854331/468244.pdfIn PDF document text
    • http://nevogixire.22web.org/34779630562.pdfIn PDF document text
    • http://my-favshopg.online/momuzeworunuvevoria6o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vufigenetusanu.epizy.com/waxutezonubijab.pdfIn PDF document text
    • http://vafotapezetu.rf.gd/la_la_land_epilogue_piano_sheet_music.pdfIn PDF document text
    • http://karuserewojax.epizy.com/space_station_13_colonial_marines_guide.pdfIn PDF document text
    • http://venavabumekaj.epizy.com/how_to_program_a_white_rodgers_digital_thermostat.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_off0000cb75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB75 5404 bytes
SHA-256: ac0708f722b30f997edd358f264c4475a772ea1c41c6ec5835bcfe6acc65867d
font_01_sfnt_off0000ddcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCD 10860 bytes
SHA-256: 0595a65aae87b1f77f03ff9e41d917856f15ae86dac71d770021022083553a87