Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e53bf1d4aa0190…

MALICIOUS

PDF

78.9 KB Created: 2021-05-19 09:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: c709b60c12799c4a30c6d10e0f974b43 SHA-1: ebd2edeb8e2fa7dde327ee49bded5189fde9235a SHA-256: 01e53bf1d4aa0190cbd9e263b1888ef7cb26cf544091181f6cd3e5d0f3caa1dd
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are designed to mimic legitimate content or application forms, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://botokaw.ru/strik?utm_term=department+of+arts+and+culture+application+form PDF link annotation
    • http://xewokilazutir.iblogger.org/asian_cup_fixtures.pdfIn PDF document text
    • https://weziriditovi.weebly.com/uploads/1/3/4/1/134108838/punazun.pdfIn PDF document text
    • https://mozurizubomexaj.weebly.com/uploads/1/3/4/6/134643417/4a26b504562800.pdfIn PDF document text
    • http://bepevekebezupu.22web.org/97976797740.pdfIn PDF document text
    • https://wusaworapivuwor.weebly.com/uploads/1/3/4/6/134659128/ab43b1853f6e3.pdfIn PDF document text
    • http://dadosib.22web.org/81217088043.pdfIn PDF document text
    • http://kizefet.iblogger.org/aha_bls_review.pdfIn PDF document text
    • https://kinigapiluxuke.weebly.com/uploads/1/3/4/8/134863840/4675462.pdfIn PDF document text
    • http://nogezat.iblogger.org/ganipuvasesekezete.pdfIn PDF document text
    • https://likixadukevagal.weebly.com/uploads/1/3/4/7/134700169/1400344.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/kezemiradigu/atualizao_android_9_samsung_j5_pro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d855d59d-3321-4aea-a49b-0971b46e71f6/u8_smartwatch_screen_price.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/37060277787.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/pixukivevexiwaluzefupo.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/40958139139.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/stealth_cam_menu_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/descargar_3dtuning_hack_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a3c66a7-e86f-4b33-9705-572cdb00806f/toyota_tis_techstream_software_download.pdfIn PDF document text
    • http://wativexapu.epizy.com/83310109230.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/consumers_report_subscription_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a77ef327-a36c-4ea0-9cc5-d3ecc4a50ea9/xumonalogogegamagirokufos.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/97141187298.pdfIn PDF document text
    • http://lapukup.epizy.com/apa_style_example.pdfIn PDF document text
    • http://viganoxoloni.rf.gd/setavozofusokasenuligate.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/44060113400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7239da14-14f4-4788-970c-99e94aa2ff9a/95202699269.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_off0000f6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E2 5300 bytes
SHA-256: ed40cd4a4994b27ec4c6de4deac2d34ddab228d154fcb84fc8d75593dd7a9680
font_01_sfnt_off000108d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D8 10996 bytes
SHA-256: 1610f284cd7eb2fe6c31ab12fc8321245ac1387a149da151ae2ff44bf112571a

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