Malicious PDF — malware analysis report

Static analysis result for SHA-256 9457fbbe209c0a9c…

MALICIOUS

PDF

76.2 KB Created: 2021-03-17 10:13:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 7cc83372c9c8af580d32ddb0988cbb90 SHA-1: 08e71c282feda1840f0820b4fb10059ab88d97a7 SHA-256: 9457fbbe209c0a9c5943056fa4d069f3fe56f21bd4678c964597b5d8dc1335cb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, with a high risk score. It contains an embedded URI pointing to a suspicious domain, 'xajibur.ru', which is likely used to host phishing content or distribute further malware. The document body, though heavily obfuscated, suggests a lure related to a travel agent portal, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://xajibur.ru/strik?utm_term=excellence+resorts+travel+agent+portal PDF link annotation
    • http://nabavawuzafurur.mygamesonline.org/46727969972.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/netgear_wndr3700v3_openwrt_5gh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448547/normal_603b945755197.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/gheKIih/78280399993.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/DVQIMgg/33515639309.pdfIn PDF document text
    • http://kutejovanog.getenjoyment.net/adolescent_reproductive_health_education.pdfIn PDF document text
    • https://cdn.sqhk.co/vizebika/VLLjjQ8/37203341098.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424036/normal_5fe7b0f0b1ec8.pdfIn PDF document text
    • https://cdn.sqhk.co/meduxemij/ghcymgj/vudoxukub.pdfIn PDF document text
    • https://cdn.sqhk.co/bamikalagov/IBhaiiY/29892655820.pdfIn PDF document text
    • https://cdn.sqhk.co/verupariv/Ujjdgeh/adrenalectomia_laparoscopica.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_60180e706ca4e.pdfIn PDF document text
    • http://wiboratiraveguw.mygamesonline.org/86714588350.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/bhjidif/gallery_furniture_store_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/hbChcfy/dekigagutevaveledowo.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/xalasawu/vinaxisududokaxo.pdfIn PDF document text
    • http://ratobewiwigu.atwebpages.com/rapuwuwuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/kibikadilun.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/jalodedemalajasufudunijil.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/can_you_animate_with_blender.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/ganudirudetaluj.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/avery_labels_template_5160_for_pages.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/47044279.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/tekitipajiwegavoki.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/malaria_treatment_guideline_india.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/brunner_and_suddarth_14th_edition_study_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC90 5184 bytes
SHA-256: e008a101daba5e71b1316293c59e42c28b95916f4ff5870439f76185ccf2ba75
font_01_sfnt_off0000fe53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE53 10852 bytes
SHA-256: ba6f8f0a98e0a05d3868e8910364cf26b8a83d249bbcb57a6ec85082a8d2dee8

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