Malicious PDF — malware analysis report

Static analysis result for SHA-256 642128b5249fd313…

MALICIOUS

PDF

72.0 KB Created: 2021-03-01 07:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2b4dd46f9d75f0820440f0bc445c3ca6 SHA-1: 2b49acb6dc4a39bea7206ba46f7e02d2c042e02e SHA-256: 642128b5249fd3132f542759d47ac1a671e64231f02e34a3d046f8a3f5b89b2e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/award?keyword=what+are+the+components+of+a+computer+network PDF link annotation
    • http://sputnews.com/how_does_gdp_impact_standard_of_livingtwjne.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414152/normal_5ffb382fa6625.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/hcthahh/like_father_like_son_song_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/jfzhipu/galaxy_on_fire_2_pc_dlc.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/how_to_put_baby_in_graco_snugride_35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409609/normal_600586ad7879a.pdfIn PDF document text
    • https://mogimefiledewe.weebly.com/uploads/1/3/1/8/131857364/tomefewevusebon.pdfIn PDF document text
    • https://menudobuwowewil.weebly.com/uploads/1/3/4/7/134765252/vobonefov.pdfIn PDF document text
    • http://jakor.pro/trane_xe90_blower_motor_replacementtmtve.pdfIn PDF document text
    • https://sirabirimafo.weebly.com/uploads/1/3/0/7/130739431/libugokeluzoboze.pdfIn PDF document text
    • https://cdn.sqhk.co/vozogekom/hgiVA9j/gadevafugakalixaxumi.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/wetuxotonoru.pdfIn PDF document text
    • http://salea.site/what_is_the_median_income_in_the_us_for_an_individualhz5zb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425009/normal_5fe37386bca1c.pdfIn PDF document text
    • https://cdn.sqhk.co/lokutibu/ibSbige/march_of_empires_war_of_lords_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453108/normal_5fdda630ade01.pdfIn PDF document text
    • http://servempieza.site/prominent_reformed_pastorsinj6b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pimobepetokonud.myartsonline.com/vepesiziti.pdfIn PDF document text
    • http://kapirexazi.onlinewebshop.net/how_to_drain_a_sundance_hot_tub.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_off0000de5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5D 5392 bytes
SHA-256: 3ebbc0293615f362fd68717dd2811a957f9c34cc511d45b2eda764ee55147857
font_01_sfnt_off0000f0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A1 9956 bytes
SHA-256: 26a1160feb554dd804dc3795196eee2d597e763a0553b1e28844d8b1a295ccbc