Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf49f1d90f98f801…

MALICIOUS

PDF

69.8 KB Created: 2021-02-02 01:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2d9ecc5d8b071b3da16600037e396473 SHA-1: a7e9eb9ca1c8c6c756796e814b91c9e6c9ed55c4 SHA-256: bf49f1d90f98f8013235c2db20d5c90d0152cd9e34d6e6d25bb0944daa2843b9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wb?keyword=border%20patrol%20checkpoints%20texas%20rights PDF link annotation
    • https://rasozonikazip.weebly.com/uploads/1/3/4/9/134904665/3042416.pdfIn PDF document text
    • https://cdn.sqhk.co/rukeditele/Fhife3e/police_hooter_sound_download_mp3.pdfIn PDF document text
    • http://merogerofame.66ghz.com/dylon_colour_catcher_40_sheets_waitrose.pdfIn PDF document text
    • https://cdn.sqhk.co/tixaxelubigi/ghhkigF/792659395.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391327/normal_600e94fc22120.pdfIn PDF document text
    • http://ladukusuga.22web.org/zisama.pdfIn PDF document text
    • https://waripeseditalas.weebly.com/uploads/1/3/4/0/134012866/vigujawefebijo.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/alpha_amylase_production.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470985/normal_6015bac2dfa82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374698/normal_5fd15b4cc8e9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ganenimipoje.epizy.com/23772785099.pdfIn PDF document text
    • http://jumametewarad.rf.gd/synonyms_antonyms_polysemy_homonym_and_homograph.pdfIn PDF document text
    • http://pasazaxara.rf.gd/bilibili_video_free_online.pdfIn PDF document text
    • http://vonolukover.epizy.com/sarkari_results_group_d_answer_key_2019.pdfIn PDF document text
    • http://puvusevakap.epizy.com/retanixutarojakiv.pdfIn PDF document text
    • http://vizumun.rf.gd/rodisigidipuxiparajilofe.pdfIn PDF document text
    • http://gafibis.epizy.com/jurassic_park_theme_song_ringtone.pdfIn PDF document text
    • http://posijibanif.epizy.com/vagoxajomulirurakutadinem.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_off0000d498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD498 5516 bytes
SHA-256: 9d30b79640319cd6912df377b88bbd29f20ecabef4bb95e4c8061e2c7927cc07
font_01_sfnt_off0000e750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE750 10352 bytes
SHA-256: 9e896b768af1d033915d6328ffb9ec652845f7ee83b6586d6bb0306482ceae6a