Malicious PDF — malware analysis report

Static analysis result for SHA-256 56cccdbc5ec85350…

MALICIOUS

PDF

75.5 KB Created: 2021-03-05 04:35:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0392f5ed012b54c0c18bfb66c135f227 SHA-1: 983876cf0aa6a6f171294136369d923515efbda7 SHA-256: 56cccdbc5ec85350ea9c3f8f8ff2e38cfdf792b222e7f7e65ebe574ff89f7cb2
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains a large number of external links, indicating a link farm or phishing attempt. The primary malicious activity observed is the embedding of numerous URLs, likely intended to redirect users to malicious sites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/123?utm_term=jesus+was+an+only+son+storytellers PDF link annotation
    • https://lanuwoga.weebly.com/uploads/1/3/1/6/131637333/755e6ecc988.pdfIn PDF document text
    • https://tokuniti.weebly.com/uploads/1/3/4/3/134331772/mijobewuludidibaw.pdfIn PDF document text
    • http://tonalemeketav.66ghz.com/miles_boykin_scouting_report.pdfIn PDF document text
    • https://xajimago.weebly.com/uploads/1/3/0/8/130813364/009287fb4c858c.pdfIn PDF document text
    • http://tukebifivimix.iblogger.org/303_squadron_battle_of_britain_pc_gameplay.pdfIn PDF document text
    • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/1292401.pdfIn PDF document text
    • https://larulukesulugu.weebly.com/uploads/1/3/4/3/134305666/waxigupofixunon.pdfIn PDF document text
    • https://lerizizevu.weebly.com/uploads/1/3/4/3/134314130/lodonimilalitobatete.pdfIn PDF document text
    • http://bogipeborowe.sportsontheweb.net/3-2_angles_formed_by_parallel_lines_and_transversals_lesson_quiz.pdfIn PDF document text
    • http://vupiziriwopo.22web.org/96772288773.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/bulolimepol/61657334760.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/nfl_week_4_printable_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/matebepotazorafoputemov.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/mogegisefas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e18ac18-770f-4cee-bf40-03c9f37764b4/roxelipepilonovi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c072b6c9-899d-44fd-ae84-6deaa7119c6f/5181743591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f872b8d6-52cf-405a-aa8c-7c3515cd7016/reset_toner_counter_brother_hl-6180dw.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/old_school_bagel_tulsa_order_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3507555-bca7-4148-bbee-366e7b738dbd/descargar_la_biblia_reina_valera_1960_en_espaol_gratis_para_pc.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_off0000eb82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB82 4864 bytes
SHA-256: 787f0f21908f6ac993d105af7666a175d2f9eb8d79d2d7b712f9fadd1430c422
font_01_sfnt_off0000fc2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC2E 10892 bytes
SHA-256: d92d7c4b40060b53704e288ce5046394095957f38c7c7e7c18c688e934894b5a

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