Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d26722456d724a…

MALICIOUS

PDF

113.7 KB Created: 2021-05-11 21:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: cd6d24fa25ab69b302335ac9fddf33b8 SHA-1: 5286e57417da6bbf760f27ef8fc63925a15765c9 SHA-256: 14d26722456d724a8783698786ddb7d1a01cc971ab5e686b41d75295a1b11e56
126 Risk Score

Malware Insights

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

The sample is classified as malicious by ML and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, 'soxebez.ru', which is likely used to host a phishing page or download a secondary payload. The PDF structure and content suggest it's designed to trick users into visiting this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/strik?utm_term=define+organisational+behaviour+in+hindi PDF link annotation
    • http://vewigufirenaw.22web.org/student_centered_learning_activities.pdfIn PDF document text
    • http://sefegusekepuxa.mypressonline.com/3689213988.pdfIn PDF document text
    • http://fegivate.medianewsonline.com/dinamalar_aanmeega_malar_download.pdfIn PDF document text
    • https://cdn.sqhk.co/divoxisig/gfPifge/fejatupupidimuwuliv.pdfIn PDF document text
    • http://rivafigikiwax.medianewsonline.com/oet_writing_answer_sheet_sample.pdfIn PDF document text
    • https://cdn.sqhk.co/mizipudi/Vha8idh/motonigon.pdfIn PDF document text
    • http://xalapuzim.sportsontheweb.net/10620729820.pdfIn PDF document text
    • https://zizojatemizowen.weebly.com/uploads/1/3/4/0/134016780/7af3ee5f69911.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/fender_mustang_i_20w_1x8_guitar_combo_amp.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/Hididgh/4748990270.pdfIn PDF document text
    • https://monijakuxit.weebly.com/uploads/1/3/4/3/134362478/kimudupolufivox.pdfIn PDF document text
    • http://rowowesofazov.medianewsonline.com/50906941652.pdfIn PDF document text
    • http://lalabomujulimof.mywebcommunity.org/new_additional_mathematics.pdfIn PDF document text
    • http://gekiwejal.scienceontheweb.net/mafoda.pdfIn PDF document text
    • http://kosamaritaj.getenjoyment.net/how_do_i_reset_my_grandfather_clock.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef552d06-11bb-42ee-ac34-b6f0bb9f5d81/bbt_bank_address_for_checks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11e115fd-d876-4a90-a274-01ffe57f1fa2/halleys_bible_handbook_classic_edition.pdfIn PDF document text
    • http://wijijatalil.epizy.com/mamiya_rb67_127mm_lens_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c97f7331-86d1-4abf-bdae-cc961af84e35/zunixovovedanoturukod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c32df0bc-1732-42d4-a5d1-ed35f8e2afcb/98997403171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9be51d1-865d-4dff-9bcd-9607b77a9ff9/english_textbook_class_7_state_syllabus.pdfIn PDF document text
    • http://tivurazug.rf.gd/hp_officejet_7612_printhead_cost.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016dc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DC3 5368 bytes
SHA-256: 98082cf21b4b6d02e2676e27d95482bc334a5eb2a5e9908fdb4273cc1f7b4016
font_01_sfnt_off00018008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18008 11432 bytes
SHA-256: 57078d36800e67fea7ba5ff0453befa9f7fe2cccc08860e7b9dcfdd3507c6be7
font_02_sfnt_off0001a657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A657 4044 bytes
SHA-256: 9e1c8d68067dd5b85a70989f60f6d3d9795c230153f6929122fe21e1d6a0bb7b

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