Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e00f56b23a2b9d…

MALICIOUS

PDF

83.1 KB Created: 2021-02-27 06:36:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 10d936a67269912bf11344d9e1a2414c SHA-1: 07a9e42505897051cb85e4f06926da313bbeb7fb SHA-256: 09e00f56b23a2b9d9404df436967733b4a53549f03d35ad4ec161dadf3ed3f4f
126 Risk Score

Malware Insights

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

The PDF document is flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with at least one, 'https://soxebez.ru/wix?keyword=macbook+user+manual', appearing to be a lure for phishing or malware distribution. The document's structure and the presence of many links suggest it functions as a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/wix?keyword=macbook+user+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422906/normal_60111ef62c9db.pdfIn PDF document text
    • http://wavepolabipal.22web.org/tamatuvasaredenut.pdfIn PDF document text
    • http://opensalle.xyz/leruxewuxizurofewesotemor54mdk.pdfIn PDF document text
    • http://kulokozataxat.22web.org/halves_and_quarters_worksheet_year_2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444646/normal_5fdd05c755cb3.pdfIn PDF document text
    • http://topplafond.xyz/bleach_vs_naruto_macx0roz.pdfIn PDF document text
    • http://bekokasutam.22web.org/adb_driver_installer_asus_zenfone_c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486346/normal_6036630f8a633.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/pojebufasajibovaxuj4tu.pdfIn PDF document text
    • http://zivuzatilezepe.22web.org/chickamauga_lake_crappie_report.pdfIn PDF document text
    • https://cdn.sqhk.co/zalogifewoje/jb89fLk/95528655436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_601a9f8620066.pdfIn PDF document text
    • http://mivakoxukike.22web.org/dadepivixiw.pdfIn PDF document text
    • http://rekabiwuxu.22web.org/financial_statement_example_of_balance_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://palilipuxajiko.rf.gd/88562323594.pdfIn PDF document text
    • http://feramivo.rf.gd/phn_mm_tch_file_min_ph.pdfIn PDF document text
    • http://xuminigodadiveg.rf.gd/45088888752.pdfIn PDF document text
    • http://ketaxesam.epizy.com/election_2019_date_list.pdfIn PDF document text
    • http://luvoxijamubisur.rf.gd/shark_navigator_deluxe_upright_vacuum_champagne_nv42_reviews.pdfIn PDF document text
    • http://pifamodaz.rf.gd/cftc_weekly_commitment_of_traders_report.pdfIn PDF document text
    • http://xotepugiz.rf.gd/9171741614.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_off000107a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A2 5156 bytes
SHA-256: 1dbf4d97c804254c0b27d38a9438759b9622681e062e8dcc30542ea24ce69fc7
font_01_sfnt_off00011923.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11923 11744 bytes
SHA-256: 26f9ce0af1fd9a786944e646d48a6d341d18700e0221f4f4ff75c2a370ae2896

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