Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ab272f9fe727b8…

MALICIOUS

PDF

96.4 KB Created: 2021-03-14 01:03:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d5ad50806e294ec869847027fc31cf7c SHA-1: 5d9e4de2e08f3bd75f8d49fbc26c9a2fd7f634eb SHA-256: 75ab272f9fe727b8aa1eb4123e070a737f1db6c5eab3f371758b7773dfd6cc95
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 0.9989

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://xezojetit.ru/123?utm_term=alimentacion+saludable+para+ni%25C3%25B1os+pdf PDF link annotation
    • http://zitalogeloluwiw.mygamesonline.org/allianz_se_annual_report_2020.pdfIn PDF document text
    • http://tugeraz.22web.org/sulurofenudef.pdfIn PDF document text
    • http://xugaguf.mypressonline.com/32262773369.pdfIn PDF document text
    • http://kixiwogazu.sportsontheweb.net/xuwusojikafekiworelel.pdfIn PDF document text
    • http://guwunewuwujulat.iblogger.org/clasificacion_de_los_costos_de_no_calidad.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
    • http://luvojidepezepag.epizy.com/53810596779.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/sawetuteb.pdfIn PDF document text
    • http://satawakerexe.atwebpages.com/dsm_personality_disorders.pdfIn PDF document text
    • http://rorufefujolag.rf.gd/adobe_maker_missing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbd78ea1-5e1d-4e80-b4bb-0c263dcd480c/dakuvib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5c3993e-47e1-4b4d-80fa-d04a58af2627/are_oakley_boots_authorized_in_the_army.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7835b3e1-23ce-4917-b31a-bc9c9036c7fe/how_to_set_alarm_on_armitron_sport_watch.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/how_can_i_connect_my_phone_to_my_projector.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/9841221839.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/how_to_program_directv_remote_to_genie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bf0b837-887e-4547-80a9-1431e87d1a1c/82579062581.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/15497724089.pdfIn PDF document text
    • http://rewuwuja.onlinewebshop.net/what_is_a_clinical_pharmacologist.pdfIn PDF document text
    • http://fapizof.rf.gd/97873225696.pdfIn PDF document text
    • http://bopubedoru.myartsonline.com/designing_data_intensive_applications_martin_kleppmann.pdfIn PDF document text
    • http://luxakekiketu.epizy.com/87057201248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a330308e-ab5d-4030-87ed-fde2b71e1fe3/81419216881.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/bracket_songs_audio.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_off00012892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12892 5524 bytes
SHA-256: c6f54c11d738c2aa63e8bb0850b8590ea940f7e7e14f665e78fd3bce6f12abcd
font_01_sfnt_off00013ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AE7 12548 bytes
SHA-256: e791306e2946a62339627d2b8b6e899c748dfd8961ddb13bf69bed89bf31c4ec
font_02_sfnt_off00016366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16366 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.