Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab1519e21f84327…

MALICIOUS

PDF

87.6 KB Created: 2021-05-05 06:11:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: abc4ffd070e12f873b63b1f9a88944e1 SHA-1: c881e6af1c9036d410dbe27d77c25f2ee1e81425 SHA-256: eab1519e21f843276b17db5f8c5e8fda70e2c7b01b8144f12b0cbe41ba0ca1a7
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 0.9993

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/strik?utm_term=how+many+calories+are+in+a+dunkin+donuts+iced+coffee+with+almond+milk PDF link annotation
    • http://zalavovira.22web.org/dijebaxokulugij.pdfIn PDF document text
    • http://luxisulejoxo.getenjoyment.net/albeniz_granada_piano.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/business_plan_for_online_shopping_website.pdfIn PDF document text
    • http://negifowutagur.mygamesonline.org/ominous_octet.pdfIn PDF document text
    • http://bepedegikojafeb.22web.org/que_es_superficie_corporal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/communication_plan_for_project_management_template.pdfIn PDF document text
    • http://punedika.epizy.com/44216212051.pdfIn PDF document text
    • https://08202b68-adf4-4b7d-bb06-fcebe54c78b8.filesusr.com/ugd/76dd3d_9b97c5c6e3a94d48a07c0adfcebed2cf.pdf?index=trueIn PDF document text
    • https://d1b33a7b-cde1-45d4-bc15-d4d3b6236ac5.filesusr.com/ugd/1d64af_f561d614db774e6bba19fe2c4fd6774b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c38f1804-3bc6-470d-a1ef-7f1594d3bae5/9683121089.pdfIn PDF document text
    • http://kiguvikifofev.rf.gd/wojodomike.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/affairscloud_current_affairs_october_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05a8f0c3-a6df-4449-93c6-8a80cfb6e34f/jemudifusujewuzaku.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/5th_wave_cast_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8526c51e-ab48-45f6-9105-13e1c4a58955/1778278761.pdfIn PDF document text
    • http://jizanisan.epizy.com/96702354879.pdfIn PDF document text
    • https://08c3cc13-1ce0-4add-927e-a3aed263473e.filesusr.com/ugd/ccf397_b2b94a6ca9a34462bca433aa9ed80e61.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wewiro/vetebetirenemulomizuzodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b082b0e7-f7b5-4c42-8d67-325669199d03/3038194410.pdfIn PDF document text
    • http://xikabuw.epizy.com/routes_of_administration_of_drugs.pdfIn PDF document text
    • http://gixiluvigatekij.atwebpages.com/sensory_details_example_paragraph.pdfIn PDF document text
    • http://misanedajog.myartsonline.com/ziniw.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/us_fda_gmp_guidelines.pdfIn PDF document text
    • https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_32f7bc9900034c179827ed68dc0020f8.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113C0 5480 bytes
SHA-256: 8c9c091ddb9e38ffc3adb0f24d28f3e80b71e65a87be556a14248e9d34ffe50d
font_01_sfnt_off00012649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12649 11700 bytes
SHA-256: 0558ccb0925f29f5d7492bc63ee6ba1fad8c2a1486aa0985aa0a5c9bd61e3699

Open this report in the interactive analyzer, or submit your own file for analysis.