Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d10205a019f7741…

MALICIOUS

PDF

77.7 KB Created: 2021-03-28 17:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 64efadb6d00bcd164c7404cc6f0b1af4 SHA-1: b26685447bb389f28b39680cb0da0b7705eb92e5 SHA-256: 5d10205a019f77411e28f9c366079d29e1186034e2254f9a96785f32376c5a34
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 0.9996

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://soxebez.ru/strik?utm_term=what+is+the+best+way+to+respond+to+the+request+tell+me+about+yourself PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427079/normal_60242e6678c0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393890/normal_6052d79d38340.pdfIn PDF document text
    • https://cdn.sqhk.co/mumaxeje/Izgdlig/rapexezibibediposopitawe.pdfIn PDF document text
    • http://waragub.iblogger.org/burglar_alarm_project.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/ahhgCfs/speedtest_by_ookla_download_for_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505839/normal_604f61304a3b8.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/8xx7PP4/royal_family_dance_crew_members_2018.pdfIn PDF document text
    • http://dkmz2.club/zexesisakugaderumumuwozeefx4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366652/normal_60302a643c7d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426696/normal_606010fb9c001.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379234/normal_5fde8ff56dcb1.pdfIn PDF document text
    • http://study-english-05.site/african_drum_rhythms05i47.pdfIn PDF document text
    • http://nefritthebestthing.site/easy_fingerpicking_songs_tab01nuc.pdfIn PDF document text
    • http://emirofficialzm.com/how_to_connect_hp_deskjet_2620_to_networkzbgco.pdfIn PDF document text
    • http://lufafemazivug.iblogger.org/affray_uk_sentencing_guidelines.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/638814f8-f02a-40b4-8ceb-6b1233049772/wabifobapalexafesig.pdfIn PDF document text
    • http://bividit.rf.gd/jio_voice_call_software_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c48b5267-8f02-4449-b06c-08839b01560d/rca_visys_25424re1-a.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3360ffbe-acca-4a4f-9228-2c0ddf021dbe/bizinenitugige.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/850f650d-3ed3-433a-bbde-37dd65ca7843/resistance_training_workouts_for_fat_loss.pdfIn PDF document text
    • http://wekepuvapuseza.epizy.com/89638243299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/502d10f9-1406-4331-8c4e-1d298ec4bf3b/rb_fake_book.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_off0000efc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC5 5752 bytes
SHA-256: 6e83923c684771c1bfc3db232ecbf563d86734ccb6a962cfac6931ff2892c74a
font_01_sfnt_off00010348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10348 11024 bytes
SHA-256: 90dee30b10c6b9b238b92a9898cff651f28b65886df627e76a6be0a8e7dc1e4f

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