Malicious PDF — malware analysis report

Static analysis result for SHA-256 e511c4a27b843639…

MALICIOUS

PDF

77.4 KB Created: 2021-03-31 06:37:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2ebf7170f316fda1988b2b26eecc018c SHA-1: 1b89d617dac7820c409e2732daf498d0971a6e6d SHA-256: e511c4a27b8436399532b1ad29cba8b860df4ad9fe88ec0fa6533018b6fc0bad
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=99+smithing+guide+osrs+2019 In PDF document text
    • https://cdn.sqhk.co/wisewuguv/phdgfoQ/domino_effect_great_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/fixakozumad/pS5rSgf/70128578818.pdfIn PDF document text
    • https://cdn.sqhk.co/xidizizo/jidlD6v/52549711482.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/DLMZLie/52822646495.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikewe/fjihhuG/13267930638.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopiroxab/hg4vO7V/dj_competition_horn_mp3_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fomanazoravu/Whcg17z/gumball_darwin_quotes.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/ihhjgfJ/dozapotatejalek.pdfIn PDF document text
    • https://cdn.sqhk.co/kusedesomawa/PjiheLQ/street_fighter_4_or_super_street_fighter_4.pdfIn PDF document text
    • https://cdn.sqhk.co/vizebika/QjihhbT/accelerated_reading_test_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/zozijawutuxu/whbHShi/baziseweziwojesibilof.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/gfjcvXs/pacific_coast_fire_map.pdfIn PDF document text
    • https://cdn.sqhk.co/sinemajud/edjfhc1/kasisajatigolewegixiz.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/gifiz/holding_company_accounts_format.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/vajifojelapebivojaj.pdfIn PDF document text
    • https://s3.amazonaws.com/wakuzidi/81354846377.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/ranzcog_prenatal_screening_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/sefig.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/hair_background_photos_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/16726476003.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/kakewusazunokavefip.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/si_joint_pain_stretches.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_off0000f192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF192 5384 bytes
SHA-256: 2bb876570b01a8e37b49e02534475f36c781e4970a741d4f247c24fb3f83ec6e
font_01_sfnt_off000103b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B9 10872 bytes
SHA-256: d0aee675dd3fec3bb0b0f2d8aa721b25517efbe559800f7a1533185b64a02446

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