Malicious PDF — malware analysis report

Static analysis result for SHA-256 1415650e9f5f9a36…

MALICIOUS

PDF

83.6 KB Created: 2021-03-21 05:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 00fb4f021cd69d3424ca3c8cede49bce SHA-1: deebad15d7993f1ba0205649bbb0b6c4de6438de SHA-256: 1415650e9f5f9a36c0e621e1c848d8279ca95bd60c3c5bfa067e1b410c4fd9db
156 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains numerous external links, including a prominent link farm to 'http://bagadiwep.22web.org/nogixibesisej.pdf', suggesting an attempt to redirect users to malicious sites. The document body, though heavily obfuscated, contains references to 'cash flow ratio analysis pdf' and external URLs, reinforcing the phishing or SEO-based malicious content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/award?keyword=cash+flow+ratio+analysis+pdf PDF link annotation
    • http://bagadiwep.22web.org/nogixibesisej.pdfIn PDF document text
    • http://lefuvaguvupawax.iblogger.org/41581297268.pdfIn PDF document text
    • http://eu-study.ru/ultimate_car_driving_simulator_classics_download8y2kr.pdfIn PDF document text
    • http://copyright-help-report.com/printable_free_printable_ukulele_chord_chartlpwfh.pdfIn PDF document text
    • http://shoop-fl.ru/75570150350daor8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8c1dc56a-a131-4b43-acff-3635b9115217.filesusr.com/ugd/90423f_c80b541419334e10b681b978e257aa71.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/coronary_artery_disease_prevention_guidelines.pdfIn PDF document text
    • https://8b8c7005-3af0-45a1-8e5b-a6902caa9335.filesusr.com/ugd/dbd7d9_45f6ce77255349f49ab3ecb956a750ed.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/varolexexus/nebenaromukilos.pdfIn PDF document text
    • http://tozibuxadotoba.epizy.com/centralized_system_vs_distributed_system.pdfIn PDF document text
    • http://fowafad.epizy.com/nadagadakofe.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/closing_the_gap_report_2014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d875620c-737f-416c-bc0f-d0ec64c882d0/zozotowukazoxitedi.pdfIn PDF document text
    • https://620678a0-8f5b-407b-881a-8a96a128c1c4.filesusr.com/ugd/25b7a6_fc6f7174da654dca87fc06f27a060cba.pdf?index=trueIn PDF document text
    • http://jusexezoti.epizy.com/46262487536.pdfIn PDF document text
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_8f3ffc6bec44476d840f6df0646a19a0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nijudow/dubozerod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54756ff7-29cb-48d1-bfa4-50e61b610e4f/how_to_identify_chevy_manual_transmission.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3002179-3644-4a99-b312-16b8f37016a3/sekoj.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/vagubobuvepox.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/bomberman_2_snes_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/mortal_kombat_x_all_characters_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/bose_quietcomfort_25_owner_s_guide.pdfIn PDF document text
    • https://e86c6366-0652-46cb-9e1f-5633a133dba9.filesusr.com/ugd/510a18_2b8f43fd5a174ab19bebc6af705c2a7a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/julavazanavi.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/net._camera_ios_10._icamera_apk.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF118 5228 bytes
SHA-256: 208609b47e0f935ddab60d27bc000e34b06b286e9c39829677b77e5a81bbd80b
font_01_sfnt_off000102f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F4 11872 bytes
SHA-256: ef455e39533fd905316cc4c9cd4a47d24fb3d630b350470f91a7523d0d685c32
font_02_sfnt_off00012baa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BAA 16084 bytes
SHA-256: 192e1cf8743c95d644f41697cb32af4f2bd92b7888e96aef7f61385a8dcfe722

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