Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed0207b57120e6e…

MALICIOUS

PDF

79.1 KB Created: 2021-05-14 23:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc04a15657bba7222704732fa47f7b8e SHA-1: d59f85950a07e1d06de4621ab75540338ef12370 SHA-256: 2ed0207b57120e6efdbffdc74830d6c83711a479e126ce977c19c096255bdbe1
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious and phishing-related. It contains a large number of embedded external links, with several pointing to unknown or potentially malicious domains. The presence of these links suggests an attempt to redirect users to harmful websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://soxebez.ru/strik?utm_term=alcatel+3+specs+gsmarena
    • http://genusadnlo.space/42648180490zdz53.pdf
    • http://reduslim-sito.site/pijikegepewogofobije7ulj.pdf
    • http://p-kavkaza.ru/in_the_heights_soundtrack_2020oa2eo.pdf
    • http://idem-peshkom.ru/tekavabowisasepinpf9rd.pdf
    • http://strahauto.website/dikazemosodevurejoserkq6ld.pdf
    • http://skidki-day.shop/nakivinosututajelololisemc6h4j.pdf
    • http://webcam-model.online/como_saber_a_hora_de_terminarf5hnm.pdf
    • http://nashremont.site/garmin_55_installation_manual_for_certified_aircraftigbqf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wikurixobelu/hardens_london_restaurant_guide_2020.pdf
    • https://uploads.strikinglycdn.com/files/8a49986f-a30f-47ea-b90b-ae531b474f4e/vupoxope.pdf
    • https://uploads.strikinglycdn.com/files/3b579751-3367-4b54-9a43-02eaddd00467/can_i_use_my_iphone_as_a_samsung_tv_remote.pdf
    • https://0d525c28-a295-4f23-9015-da00738c1840.filesusr.com/ugd/c4ccc4_d73f16410b674ac2aa93460ea2ea8c2f.pdf?index=true
    • https://s3.amazonaws.com/sonutopexaramuf/bitcoin_cash_wallet_apk.pdf
    • https://167c2301-eccc-4e3a-a609-38a4f17b9bf8.filesusr.com/ugd/b1dabf_86eec08ef59c43c3b072e868ebe18fef.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9e8621cf-d02e-4cf0-b0fa-373e57c5f256/87661598634.pdf
    • https://a3cd4400-5fdc-4e6a-bda8-88556a2d4d1f.filesusr.com/ugd/2f7489_55778f5a7b90413c9e439f1f4da64da3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/a1c2f8bd-d940-4bf4-a19e-78eeda410898/jetokodenilemoji.pdf
    • https://s3.amazonaws.com/sivanira/django_template_tags_count.pdf
    • https://uploads.strikinglycdn.com/files/a19e7c52-55f8-453b-a7d1-3990229c4d7d/47658246809.pdf
    • https://uploads.strikinglycdn.com/files/d0fb62fb-5025-4b18-9425-c6cd9bf97129/gavomiwovagozumiride.pdf
    • https://uploads.strikinglycdn.com/files/e5e75635-1e4a-4464-bf00-4ca0ff5d0ae6/befujirepejavekofope.pdf
    • https://s3.amazonaws.com/rafiralexezol/precio_de_gps_garmin_nuvi_750.pdf
    • https://932aa67c-856a-4fda-9fc8-fe3f50d4acc2.filesusr.com/ugd/a25eee_c895d8a05f964b768aad384d8650babb.pdf?index=true
    • https://uploads.strikinglycdn.com/files/44c19629-f374-425d-ab56-9c416ac4f609/damajalodiv.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4f1.bin
305ed395fc0561951bd15503e36246ffeb04060a1bc33c2460b73cbc47644817		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F1 5404 bytes
font_01_sfnt_off00010741.bin
71644d7cbb27f0f27231bc0eccfaa51678761e830373e75b17abdd41853b3340		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10741 11812 bytes

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