Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fef113e772638f2…

MALICIOUS

PDF

72.4 KB Created: 2021-03-07 19:09:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: da32264a7e8920eb935179acd80a1bad SHA-1: e412ce13f90676635ff4e9343876f4d94282eaea SHA-256: 0fef113e772638f2c84b94de9f5d5663c26f7d03b594e5e65286f9e92f531500
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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 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://ponafet.ru/award?keyword=chemistry+an+atoms+focused+approach+2nd+edition+pdf+free+download PDF link annotation
    • https://zegepami.weebly.com/uploads/1/3/0/8/130874110/9711777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481985/normal_6001720070084.pdfIn PDF document text
    • https://cdn.sqhk.co/lepowabog/4hjchjq/45987551848.pdfIn PDF document text
    • http://derilezin.sportsontheweb.net/moondance_nightwish_piano_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/tejurorado/gyLgdYi/67880084187.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_601611aae00ad.pdfIn PDF document text
    • https://ketabanajav.weebly.com/uploads/1/3/4/7/134707818/96d8ffd7886ac5c.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/a_suitable_boy_netflix_series_review.pdfIn PDF document text
    • https://rizigavitud.weebly.com/uploads/1/3/4/5/134581125/8077730.pdfIn PDF document text
    • https://cdn.sqhk.co/zerumowo/ikZ5Wja/7526161127.pdfIn PDF document text
    • https://cdn.sqhk.co/vikafaselida/eRAXzhL/the_sims_mobile_4_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5fd6582dbdd11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500200/normal_5fca68f4ae7cf.pdfIn PDF document text
    • https://cdn.sqhk.co/kiburonoxib/ehjQ2W6/gold_commodity_price_chart_history.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/e369c29c-b250-4b6b-bad9-7dba30e6bf35/concert_ukulele_chord_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7473c28-9cf7-4aab-a847-f0bb63b0f5f1/la_fitness_lifetime_membership_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f147b38-a5ff-43b2-a65a-3c9a9cdfdae9/85675447025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fe010de-38ba-43d7-a92a-1dd1d3921216/hitachi_ultravision_tv_troubleshooting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2a8a5f5-96f4-4d8a-8aff-e228d3100612/59079793438.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9723b53-c3dc-40e3-9ae7-f6e16f25e2f1/how_to_install_windows_10_on_acer_aspire_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cfa119a-76b0-43bc-87ac-1bc64a0b2db3/free_willy_3_streaming_altadefinizione.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2348fa04-ff2c-4836-bb41-3fef42f19deb/sony_dvp-sr210p_specs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDF9 5628 bytes
SHA-256: c748037d2180b735d3aaf7bc92938ce717b9d4be3450f8f909e6d5e6639949e3
font_01_sfnt_off0000e10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10B 10736 bytes
SHA-256: d86a205f80a36a9bbd8f5882a2577a89f9aa58433e125bbad50c46d8cc0323f8
font_02_sfnt_off000105c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C5 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3