Malicious PDF — malware analysis report

Static analysis result for SHA-256 559bcfb0c47d6c8d…

MALICIOUS

PDF

72.0 KB Created: 2021-02-28 12:45:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: ecadf099c5fed16da5ecb7c55ed17f35 SHA-1: 453e15967e5c74b4f3fe0831a4dfd2d8f048d035 SHA-256: 559bcfb0c47d6c8d1f7acf9edd184788799149ed90ffa495e6d031540ee632ca
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://botokaw.ru/123?utm_term=is+there+gonna+be+a+season+2+of+girlboss', suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to redirect users to malicious sites or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/123?utm_term=is+there+gonna+be+a+season+2+of+girlboss PDF link annotation
    • http://xulubapatoso.scienceontheweb.net/56703022625.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/lmhiija/woodshop_woodworking_shop_floor_plans.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/8jhdXgo/46573272992.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/jjhdBhh/incremental_definition_larousse.pdfIn PDF document text
    • https://cdn.sqhk.co/muligumixe/hbhoTif/new_gun_shooting_strike_counter_terrorist_games_apk.pdfIn PDF document text
    • http://bikejesoxatelo.mygamesonline.org/sevomirodupafekivavoleka.pdfIn PDF document text
    • https://cdn.sqhk.co/vixonafom/hEigE8r/duvajufitixo.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/votubukaxogilix/aashiqui_2_tamil_version_audio_songs.pdfIn PDF document text
    • http://tiluxusimutine.atwebpages.com/41830906462.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/4107434398.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/67542455847.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/zamolo.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/ymca_diabetes_prevention_program_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/capitalize_first_letter_textview_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/madakalevotow.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/candy_crush_soda_windows_xp.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/eso_imperial_city_boss_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_off0000dcf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF4 5236 bytes
SHA-256: 2dddda4d2af2eaa6e906b6626fb3136af9acc72954e298939eeeae5f028f24ec
font_01_sfnt_off0000eec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC1 10624 bytes
SHA-256: 50216accef49d0f26654bbf4309c33d0a671f6d93ba91302a44657eee2cb071f

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