Malicious PDF — malware analysis report

Static analysis result for SHA-256 04e169564a094b1f…

MALICIOUS

PDF

74.0 KB Created: 2021-02-28 00:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 78b8b72c0c331424823507be4bd3641d SHA-1: da35591a0ae3da39a224b49205be7e09f8338d8e SHA-256: 04e169564a094b1f538a9a27d30774f31959948421a46385be7e127c12f5399a
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://mezovuduw.ru/strik?utm_term=what+kind+of+charger+does+a+asus+laptop+use PDF link annotation
    • http://ronifibofizet.medianewsonline.com/how_to_write_personal_statement_uc_berkeley.pdfIn PDF document text
    • https://tonezesonor.weebly.com/uploads/1/3/2/6/132681734/wenimiwokaxur.pdfIn PDF document text
    • https://vigoruso.weebly.com/uploads/1/3/4/1/134131386/sowota.pdfIn PDF document text
    • https://komijeji.weebly.com/uploads/1/3/1/6/131606126/149dfa3b51ec.pdfIn PDF document text
    • https://gikanusubidi.weebly.com/uploads/1/3/4/7/134756500/laruxigis.pdfIn PDF document text
    • https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/fogof-mekawitofata-sugabepukegezom-vijevo.pdfIn PDF document text
    • https://winenexosipagep.weebly.com/uploads/1/3/2/8/132814343/nuxajatamugana-begukosadexekot.pdfIn PDF document text
    • https://polatubogo.weebly.com/uploads/1/3/4/5/134598163/fotibezotezupovibu.pdfIn PDF document text
    • http://riwetisanuda.iblogger.org/36978631312.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/jhWLqeN/dead_trigger_2_online_game.pdfIn PDF document text
    • https://nivosuvadifo.weebly.com/uploads/1/3/5/3/135384950/343d634c79fe4af.pdfIn PDF document text
    • https://wotapidedodibi.weebly.com/uploads/1/3/4/4/134475573/76cec3a0829e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://morikid.epizy.com/roteteruwaperupepinet.pdfIn PDF document text
    • http://febegisavim.rf.gd/nelonatujedosolutominuru.pdfIn PDF document text
    • http://tubonunok.epizy.com/what_are_the_advantages_and_disadvantages_of_wind_power_plant.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_off0000e302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE302 5492 bytes
SHA-256: 57a488ea3dd6287845f9537abc04c2b2db1bd1060bed98831a469db1677c6daf
font_01_sfnt_off0000f5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C1 10968 bytes
SHA-256: 1ff3af35054a75f5ed1f186a436291883c214d83640e09cd9b07f7f61b23b37d