Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ad224276d89962…

MALICIOUS

PDF

84.7 KB Created: 2021-03-20 15:24:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7125d7099f67c46be12cf2ddd4b1e692 SHA-1: 1ad674c7554b8ac4c490e01bb7eb348529923c0e SHA-256: 95ad224276d899621be3bb0af9fd1fa8ab16b4098899da5d18af0b2742ca8f05
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 0.9995

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://zajinet.ru/award?keyword=hr+payroll+process+pdf PDF link annotation
    • http://faceskinagainbeauty.xyz/21093367425qpinl.pdfIn PDF document text
    • http://blog-millionaire.buzz/gujewirozuwejellpkp.pdfIn PDF document text
    • http://helplnstagramcontact5087423.com/9475539855724oaq.pdfIn PDF document text
    • http://vclean-sale.shop/symmetry_worksheets_free_printablei3gc1.pdfIn PDF document text
    • http://pajuwepubawip.sportsontheweb.net/wedoxivalamafele.pdfIn PDF document text
    • http://molapeda.iblogger.org/workkeys_test_results.pdfIn PDF document text
    • http://ogranifruit.space/6666426757hfb1a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dimonejoxu.rf.gd/brs_pathology_5th_ed.pdfIn PDF document text
    • https://76f5a3e5-08d8-4581-9975-6c1b933a1845.filesusr.com/ugd/dbbd16_343bc30a68774e17bf399a40abdd06d6.pdf?index=trueIn PDF document text
    • http://mepigaruvuj.rf.gd/conroe_news_reporter.pdfIn PDF document text
    • https://cf176ec6-4820-456b-adf9-61e5f06c968f.filesusr.com/ugd/43d598_8f29c2bdb2f14d3a8a46119929bf3555.pdf?index=trueIn PDF document text
    • http://sudatidi.epizy.com/convert_to_word_free_download_zamzar.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/siras.pdfIn PDF document text
    • http://zimemotom.rf.gd/agrobacterium_heat_shock_transformation_protocol.pdfIn PDF document text
    • https://cd489911-dc6d-4439-b408-84622343fb93.filesusr.com/ugd/d8e941_54cad3c3f274433db72828343ecb8b81.pdf?index=trueIn PDF document text
    • https://37e0f79d-b0c1-4727-b76d-5b759c81288f.filesusr.com/ugd/9c66ff_d091b2a10c03475cb01108b12e8c17e7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/30541320871.pdfIn PDF document text
    • https://bf23b77b-49a9-4bef-a898-a03cfb94aefa.filesusr.com/ugd/134172_6aedf7bcc9334b18b4c07bb766ea86d2.pdf?index=trueIn PDF document text
    • https://e966359d-176b-477a-9ad9-c314bea94227.filesusr.com/ugd/fa6f14_0c84d0a05d8d49faa887c7b145aed14d.pdf?index=trueIn PDF document text
    • http://rogomore.myartsonline.com/kapemumozaze.pdfIn PDF document text
    • https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_790188a1da8d45558a90482fcfcf59a3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/14508251824.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_off00010deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DEB 5212 bytes
SHA-256: 7008b7e1ccc77f26605a3edc9abc17d9b11798c87452422b4ce5c9d03d1e4b23
font_01_sfnt_off00011fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBC 11168 bytes
SHA-256: 7ecf64503184af425ebd67f82c6bcdafcded68cc306817bb45fe688211b5d036

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