Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbb4ff24965048a…

MALICIOUS

PDF

85.6 KB Created: 2021-03-31 06:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8171363ba65b681ed8a79a5257209002 SHA-1: 558d563255636b277c97fd0fee645a13e19ee3ea SHA-256: 1fbb4ff24965048aa291e781473c772d383ba36539bdab0747ad4da8a91c6560
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/wix?keyword=mage+leveling+guide+ragnarok+renewal PDF link annotation
    • http://sokfresh.fun/what_are_the_3_economic_questions_all_societies_facexhs83.pdfIn PDF document text
    • https://rozelofesewezu.weebly.com/uploads/1/3/4/0/134040375/9304735.pdfIn PDF document text
    • http://boomerangoo.site/lojewugajeva85zcv.pdfIn PDF document text
    • http://gekiwejal.scienceontheweb.net/36179150409.pdfIn PDF document text
    • https://suzexumereda.weebly.com/uploads/1/3/6/0/136051641/fukafemune.pdfIn PDF document text
    • http://mibikazut.mypressonline.com/pdf_antropologia_cultural.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/edit_file_online_and_save.pdfIn PDF document text
    • https://sutapupimode.weebly.com/uploads/1/3/4/6/134615637/tisoliti.pdfIn PDF document text
    • https://darifojiwuz.weebly.com/uploads/1/3/4/5/134588766/ledefafokasik-pirinef-puramepivufijev.pdfIn PDF document text
    • http://vesajob.getenjoyment.net/difference_between_c_and_c_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://ninukak.epizy.com/rawaxadexujelegipotufugo.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/anti_musk_antibody_full_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0ced648-f206-4f5c-8216-a82d37b6ef61/92327366026.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/banexikejepimirokutes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee0c5327-c2ba-44ba-a11a-e77c12ccc4f9/how_to_heal_from_fear_of_intimacy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1edd9b21-b025-438c-9b9f-a5a33fc3b66f/difference_between_rule_based_and_principle_based_approaches_to_corporate_governance_regulations.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/lenovo_g50-80_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c9c162b-d959-4d27-9708-49c7a44df7cf/easy_way_to_stop_smoking_epub_free.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/calgary_information_technology_jobs.pdfIn PDF document text
    • http://karajifaderiwow.epizy.com/86533314140.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/67743429023.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_off000106b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B9 4840 bytes
SHA-256: c17c9bbd92ec84f078c60f48a2a7d512948aab9c654998020dbae7f6179a5b32
font_01_sfnt_off00011745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11745 10404 bytes
SHA-256: 0038fd8502774c2e0a783008e3b7a1b9163b1183a0a002832e2ee7f1c92c4edf
font_02_sfnt_off00013ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AD7 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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