Malicious PDF — malware analysis report

Static analysis result for SHA-256 6802ae0341ce18db…

MALICIOUS

PDF

82.7 KB Created: 2021-02-18 17:49:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 02a66d38d3ae208f26048faaf085f50f SHA-1: eea8f94a1a32f7b185c42d7df933328c5d286537 SHA-256: 6802ae0341ce18db6f2b652f1eea08d041ec96105800ae523b901570f70e3bff
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are obfuscated or lead to potentially malicious domains, indicating a link farm or phishing 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 an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/strik?utm_term=acer+chromebook+15+cb3-532+charger+walmart PDF link annotation
    • https://legovizadedugid.weebly.com/uploads/1/3/1/8/131856283/worejatudavoxojaj.pdfIn PDF document text
    • http://sowufevoga.iblogger.org/toxinebejuromawuluzif.pdfIn PDF document text
    • http://logmeinnow.xyz/wubavalipozokubojugimme73k.pdfIn PDF document text
    • http://theporte.xyz/sezejgeyd9.pdfIn PDF document text
    • http://1xbet-registrat.site/air_new_zealand_app_for_androidmlpmq.pdfIn PDF document text
    • https://pumutetigowon.weebly.com/uploads/1/3/4/6/134699291/5589393.pdfIn PDF document text
    • https://zepitobazelaki.weebly.com/uploads/1/3/4/6/134619491/34d28603.pdfIn PDF document text
    • https://takoremitivo.weebly.com/uploads/1/3/0/7/130738963/mofumalawo_zebegokerusaxa.pdfIn PDF document text
    • https://duditoza.weebly.com/uploads/1/3/2/3/132302736/482576.pdfIn PDF document text
    • http://naturebiolog.space/the_lord_of_the_rings_the_fellowship_of_the_ring_gameplay_pc6xpab.pdfIn PDF document text
    • https://vomifudumapo.weebly.com/uploads/1/3/5/3/135345338/8ebc81e930da.pdfIn PDF document text
    • https://bosamekuxukis.weebly.com/uploads/1/3/4/6/134672370/6570160.pdfIn PDF document text
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/luramoniregitatuzop.pdfIn PDF document text
    • http://esagafow.fun/closest_burger_king_near_me_nowenxzc.pdfIn PDF document text
    • http://filmera.ru/leaflet_bahaya_narkoba2hu3o.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/womirofop/formal_letter_template_ireland.pdfIn PDF document text
    • http://puwoxigawezab.epizy.com/catabolismo_de_nucleotidos_purinas_y_pirimidinas.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/14593839513.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/40285629850.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/45824972357.pdfIn PDF document text
    • http://rifovedukuj.epizy.com/soundcloud_er_free_music.pdfIn PDF document text
    • http://meraxemuvixise.epizy.com/technical_analysis_explained_martin.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/bluedriver_obd2_scan_tool_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10231 5824 bytes
SHA-256: be146582c4b038a12b1d9e54ff8a02b9124d60d693efcf9697d42d642b27fc0d
font_01_sfnt_off00011603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11603 11460 bytes
SHA-256: d3631ea2b5a6c72e5b16977dac83c08a6b735edbdb24892c0fdc0421f46ce375

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