Malicious PDF — malware analysis report

Static analysis result for SHA-256 47d2b65687ab0261…

MALICIOUS

PDF

81.3 KB Created: 2021-03-16 11:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b17adadf95910ada13f04fd057b17998 SHA-1: 56930b55cb8cca4b8d59e0a1c5c378e70c735dc3 SHA-256: 47d2b65687ab02619eb8677ee74711d9413da539fc5198ab1b10c80cc7fb5e70
126 Risk Score

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 0.9997

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://xezojetit.ru/award?keyword=beneficios+del+cafe+organico+pdf PDF link annotation
    • http://vefazuvoxezam.22web.org/ruvatelisanefifupiziwazab.pdfIn PDF document text
    • http://kizefet.iblogger.org/14493049272.pdfIn PDF document text
    • http://rutonujak.iblogger.org/citra_emulator_android_specs.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/73586035263j2m90.pdfIn PDF document text
    • http://diletemofuvufu.22web.org/zawupasekezozenudo.pdfIn PDF document text
    • http://alteramaks.world/how_to_make_call_to_action_button_in_wordpresswexn8.pdfIn PDF document text
    • http://kapusta.pro/whats_extended_metaphor_meanrkadi.pdfIn PDF document text
    • http://899themes-demo.ru/19952301687lah0o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pelotisevinok.rf.gd/company_audit_report_format_in_word.pdfIn PDF document text
    • http://zuvaxazalafes.epizy.com/total_gym_workouts_for_weight_loss.pdfIn PDF document text
    • http://fomonew.rf.gd/71828196159.pdfIn PDF document text
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_4541c035198c414492b2403a548b827c.pdf?index=trueIn PDF document text
    • http://kiwasebax.epizy.com/56548283110.pdfIn PDF document text
    • https://4b4ea461-5266-411b-8735-d5290551f550.filesusr.com/ugd/7fedcf_4554354781484af3a23d489d87aaa9aa.pdf?index=trueIn PDF document text
    • http://nudifezidezi.rf.gd/puwibomugudifiloz.pdfIn PDF document text
    • http://janaxoz.epizy.com/platformio_arduino_serial_monitor.pdfIn PDF document text
    • http://jojudodadanu.epizy.com/jusivivej.pdfIn PDF document text
    • https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_8b85557ce33c46248c1338a3cbdeb48b.pdf?index=trueIn PDF document text
    • https://26577e91-18e8-42c3-8e85-49dcca1d6605.filesusr.com/ugd/195787_7a53e3c30cbc43dd873a03d57ccdfcd4.pdf?index=trueIn PDF document text
    • https://171e2b11-24ea-4535-acac-f971ec821c4b.filesusr.com/ugd/a07927_42ae81be299c450faa024609a2b76386.pdf?index=trueIn PDF document text
    • http://medojowibapij.epizy.com/kupef.pdfIn PDF document text
    • https://69cf8a46-0d3d-4b71-8fd1-93df925da18e.filesusr.com/ugd/e4064d_db8f8e2cd0bc4528a08f172033333580.pdf?index=trueIn 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_off0000fcf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF7 5372 bytes
SHA-256: 7eb0213e1f907ed39c1b15722759ec8c53558cc9a1c673793ccb936b6913ac9d
font_01_sfnt_off00010f54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F54 11968 bytes
SHA-256: 298d778b9961cad009ae3cfb20ee4035782102adcae478a819602c1be57c5ef5

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