Malicious PDF — malware analysis report

Static analysis result for SHA-256 505de3b9ab063fab…

MALICIOUS

PDF

78.4 KB Created: 2021-03-30 11:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 06749fd4109a36fc52a143a68d79e80a SHA-1: 508f8dd6830295f0d41fbc7ea7bf301429f86e23 SHA-256: 505de3b9ab063fab167b93614d04875646109f62806fe86b57676657a5c88cf0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=electric+power+and+controls+2nd+edition+pdf+2013 PDF link annotation
    • http://pajopoxofof.iblogger.org/how_many_sentences_should_be_in_a_conclusion_paragraph.pdfIn PDF document text
    • https://gopelema.weebly.com/uploads/1/3/4/3/134314553/9186419.pdfIn PDF document text
    • https://cdn.sqhk.co/nazopekujavi/idznkjb/weed_joint_photo_maker_editorial_board.pdfIn PDF document text
    • https://cdn.sqhk.co/pumevigatare/jgyIQdh/mcdonalds_breakfast_menu_times_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/jcWhcQo/mupowirafurapizorumesi.pdfIn PDF document text
    • https://cdn.sqhk.co/lamijaluxeso/hgfX9V3/jurassic_survival_game_walkthrough.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/220400.pdfIn PDF document text
    • https://cdn.sqhk.co/xurazegoba/cifgesf/farming_simulator_17_pc_mods.pdfIn PDF document text
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/mefedabadujodemupuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/64cb8fab-dd7b-443c-a515-35f1b8d8ca65/el_lazarillo_de_tormes_tratado_tercero_resumen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0530dc85-5fbf-4b97-9991-033d912c0f31/how_to_edit_vertical_video_imovie_on_iphone.pdfIn PDF document text
    • http://rowebilit.epizy.com/39505416792.pdfIn PDF document text
    • http://runisinifozi.rf.gd/kegifetatuvumiwitepil.pdfIn PDF document text
    • http://kokogaradomope.epizy.com/creature_from_jekyll_island_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac7c83e4-fad4-49aa-96ba-780d49a74028/37921955488.pdfIn PDF document text
    • http://fetufebutegiv.rf.gd/6799614758.pdfIn PDF document text
    • http://pugunefa.rf.gd/unir_varios_en_linea_gratis.pdfIn PDF document text
    • http://repoguter.epizy.com/24904002710.pdfIn PDF document text
    • http://nuwudepebepusab.rf.gd/rarulibime.pdfIn PDF document text
    • http://dikawixum.epizy.com/wetilavekofegexagexofad.pdfIn PDF document text
    • http://bisiziwaros.epizy.com/rogubeguniwobil.pdfIn PDF document text
    • http://mevonaku.rf.gd/encyclopedic_dictionary_of_roman_law.pdfIn PDF document text
    • http://gogotefabup.rf.gd/abaqus_tutorials.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AC 5688 bytes
SHA-256: d90fdc778b72da6a2f1d90abf758bc11246c150e346433b735ef161604b1c7cd
font_01_sfnt_off00010738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10738 10792 bytes
SHA-256: 2e88c952cf305b9b4ecadebbba35e25f66b38826bb20e0da8c756dd043f28e40

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