Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf9c01d7a5cf321…

MALICIOUS

PDF

66.1 KB Created: 2021-02-20 13:29:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d16e93d38397f70edc56efadc3363680 SHA-1: 167a3ac8b48f29e07a9a9863f5f78c70df413d28 SHA-256: adf9c01d7a5cf3211304d170e7c57bb6ca4e5f2ba1862bca22f2537043bfe964
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://baarspo.ru/wix?keyword=historic+flight+foundation+facebook PDF link annotation
    • https://belikonanobos.weebly.com/uploads/1/3/4/6/134610264/betugigazosuzogaw.pdfIn PDF document text
    • https://vawemuziz.weebly.com/uploads/1/3/5/3/135351027/mufizul_kisogizivige_wixike_nasejezu.pdfIn PDF document text
    • https://kadamoxezegawuf.weebly.com/uploads/1/3/4/3/134347408/kefexoromor-fegeduworag.pdfIn PDF document text
    • http://theharaka.online/bidivozibojobogoloxigarux6mxl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_600c65040b621.pdfIn PDF document text
    • https://wosubazaroden.weebly.com/uploads/1/3/0/8/130813518/405164.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/grade_10_english_textbook_albertaef1c5.pdfIn PDF document text
    • http://hyipinvest.site/60802675837n7byt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470837/normal_5fd77094be369.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418197/normal_600f01ba4fd3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470211/normal_60292441f09dd.pdfIn PDF document text
    • http://keto-menu.online/97876046342eqo74.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/verirejon/tp-link_tl-wr841n_change_password.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/latest_android_4g_mobiles_under_7000.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/a_frame_swing_set_plans.pdfIn PDF document text
    • http://xevivalekivo.epizy.com/probability_questions_and_answers_class_12.pdfIn PDF document text
    • http://putazosaw.epizy.com/cds_full_form.pdfIn PDF document text
    • http://putesedesupelo.epizy.com/8969772792.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_off0000c6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F7 5448 bytes
SHA-256: c178383d58411e7c6d424ab1a4882ceaa39adfc64394fca1e284dc3111b5f0b7
font_01_sfnt_off0000d970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD970 9860 bytes
SHA-256: 564ee6c796dc7edae0ceddfabf1fcb5e0434994eae9a70d819763ce0f82f3ce1