Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e0df20e3cd26152…

MALICIOUS

PDF

69.5 KB Created: 2021-03-26 10:01:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 17d9f7fbeb29e2071bde898d59d1a608 SHA-1: b02669ebeb2f29d988d4ab6968641e0cf01f3a78 SHA-256: 1e0df20e3cd26152e4344ea649c9b7378d088f42a67021a28bf6306763ed0f14
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-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://mezovuduw.ru/123?utm_term=cambridge+checkpoint+science+workbook+3+pdf PDF link annotation
    • http://frukt.space/elm327_mini_bluetooth_pc_softwarebvzug.pdfIn PDF document text
    • http://irbestate.ru/why_is_my_portable_ice_maker_not_making_icesdwg1.pdfIn PDF document text
    • http://fallofelin.online/personal_training_plans_templates7c2t2.pdfIn PDF document text
    • http://mini-camera-super.club/vududilivotivozuwomef1bam2.pdfIn PDF document text
    • http://simcars.ru/java_8_api_documentation75kfm.pdfIn PDF document text
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
    • http://flymoney.net/yamaha_gb1_baby_grand_piano_for_sale1ryqm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gojetovumivet.epizy.com/sony_camera_4k_apk.pdfIn PDF document text
    • https://1a441fb4-51dd-4528-a053-eb59ff664e18.filesusr.com/ugd/43d9d5_2f1284530eca4e4894a75f4f7cf49b7f.pdf?index=trueIn PDF document text
    • https://01c4c9a3-ee74-4db9-a65d-799443b8dbf1.filesusr.com/ugd/a64c8c_4e3659f28e19434bace329bac0901949.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/252b191c-a58a-43fa-b6c1-31b61bd08f8b/how_many_carbs_does_arbys_sauce_have.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ad3a7a0-f0da-42da-af44-2a003f66eb76/whats_another_word_for_ethics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82a3e510-3265-4de0-83fd-4060045659a7/blink_inc_has_1000_shares.pdfIn PDF document text
    • http://zerinamud.rf.gd/wezivixopa.pdfIn PDF document text
    • http://romezegipoxo.epizy.com/comprehension_passages_with_questions_and_answers_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba84cffa-0619-4a96-bc23-7bb6ca509508/38968170675.pdfIn PDF document text
    • http://xelurutokige.rf.gd/senilamud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f966518-d7af-45d0-966c-076bc1d21a05/fejajak.pdfIn PDF document text
    • http://xowofap.rf.gd/atomic_physics_by_jb_rajam_free_download.pdfIn PDF document text
    • http://zisafaziga.epizy.com/17373750886.pdfIn PDF document text
    • https://e028ba52-6c86-493e-86b7-fecf7cd1c3eb.filesusr.com/ugd/bcb9fd_8fdc0d50a81c4d78b4148268cbaf4b15.pdf?index=trueIn PDF document text
    • http://gakinodimojulat.rf.gd/curso_guitarra_flamenca.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_off0000cfeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFEB 5900 bytes
SHA-256: c350d2a26b45af929e3723429437e8812537944c3225b17caf3b89376b410ca6
font_01_sfnt_off0000e3e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E4 10784 bytes
SHA-256: f58a2f721015338526d5ce6028acf026299eac1d64a78ba2655296db08a1eb37

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