Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e049da8a64f209b…

MALICIOUS

PDF

68.3 KB Created: 2021-03-15 02:50:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 0e40d81f87615512392516ae4644e6fb SHA-1: 9458b6f2d4cbabc015de094fd88606818191bfd0 SHA-256: 9e049da8a64f209b0c090a7f3637c7ec742cc93d113c1dcc1729d543d888f878
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with a primary suspicious URL leading to a domain known for hosting malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful external sites.

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://xezojetit.ru/wix?keyword=glencoe.mheducation.com+ch+10+developing+child+quiz PDF link annotation
    • http://sowurokirifi.22web.org/comunicar_assertivamente.pdfIn PDF document text
    • http://lorubuxetorifa.medianewsonline.com/autocad_civil_3d_tutorial_youtube.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/64821920626.pdfIn PDF document text
    • http://suvekitubexeso.getenjoyment.net/sex_offender_registry_nc_law.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puguvapalovuzub.rf.gd/isi_journal_citation_reports_ranking_2019.pdfIn PDF document text
    • http://pitalonefizat.rf.gd/45819554409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/432345eb-e66e-4110-b072-638d1c9a4c7f/estadistica_de_covid_19_a_nivel_mundial.pdfIn PDF document text
    • http://verulufana.rf.gd/catlogo_natura_ciclo_9_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be9a0238-07d5-41ad-a202-2dfdd91d368c/shadowrun_sixth_world_core_rulebook_review.pdfIn PDF document text
    • http://japolowepipu.rf.gd/android_10_beta_s9_plus.pdfIn PDF document text
    • http://mikugux.rf.gd/go_rin_no_sho_japanese_text.pdfIn PDF document text
    • http://zivigujuvove.rf.gd/remawiposukix.pdfIn PDF document text
    • http://xoxinazur.rf.gd/39467247419.pdfIn PDF document text
    • http://wexugemo.epizy.com/39515004475.pdfIn PDF document text
    • http://toxawilel.epizy.com/tilozuzupipesunizapimik.pdfIn PDF document text
    • http://sufalejadi.rf.gd/how_would_you_describe_your_favorite_food.pdfIn PDF document text
    • http://gepubefe.epizy.com/good_fishing_lures_for_striped_bass.pdfIn PDF document text
    • http://tarobajasupimi.epizy.com/vukefimofumaxeg.pdfIn PDF document text
    • http://kivunakoxowufaf.epizy.com/34794594549.pdfIn PDF document text
    • http://zakidodirof.epizy.com/duraheat_kerosene_heater_home_depot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/550f91a0-02e9-408e-93a0-3d990d8f2047/funny_poems_about_video_games.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_off0000cced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCED 5708 bytes
SHA-256: eae2f24f194b80c111db56507fc89d7a2ef8306a8b73ce3f7a51432c0ccae854
font_01_sfnt_off0000e041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE041 9752 bytes
SHA-256: 9c2efd50bc615a0044da6987459d5ebb5374556b1ddb5cb5c489a0e267a9cb1c

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