Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3372dd4e142090…

MALICIOUS

PDF

70.3 KB Created: 2021-02-25 14:47:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ca02f2ae8f08f7df39414333c550d17b SHA-1: 59e2064794093e59644e34dc9ad15a787cb8ab7a SHA-256: fd3372dd4e142090e7c0692e1332980b721a96c34072ae6096dfc3cbd848627a
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://jottigo.ru/award?keyword=macbeth+study+guide+answers+act+1+scene+2 PDF link annotation
    • https://talunijepi.weebly.com/uploads/1/3/4/5/134599753/kunot.pdfIn PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/soposuludap.pdfIn PDF document text
    • http://punejew.mygamesonline.org/66603163448.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/how_to_program_a_universal_remote_without_instructions.pdfIn PDF document text
    • https://tovijivesigaz.weebly.com/uploads/1/3/5/3/135327805/9b870b8f65e28.pdfIn PDF document text
    • http://gatowixipeba.mywebcommunity.org/how_to_clean_a_speed_queen_washing_machine.pdfIn PDF document text
    • https://vamewifajezik.weebly.com/uploads/1/3/5/2/135297159/add1d0e.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/ZSibOnq/nibewixafonev.pdfIn PDF document text
    • https://jizidetaji.weebly.com/uploads/1/3/4/6/134626841/zapesejomumapizewut.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/Zhhhfge/burger_chef_fast_food_restaurant.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/hp_elitebook_2760p_ram_slots.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/btw_bereken_formule_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/free_printable_hymns_sheet_music.pdfIn PDF document text
    • http://gutekuretejapoj.onlinewebshop.net/mumudowabebovesefe.pdfIn PDF document text
    • http://resilasijajatil.myartsonline.com/pl_sql_if_else_equal.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/word_count_in_google_sheets.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_off0000d63a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD63A 5692 bytes
SHA-256: 4ff474b0d143dae9e99fdbad21c57e79c29c2c9064f71ce8fd65974381cc4b37
font_01_sfnt_off0000e9ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BA 10128 bytes
SHA-256: f2e3972fd1a9f9ec268c9388fd772af597461df436ecbdd7077c2bb444773c5f