Malicious PDF — malware analysis report

Static analysis result for SHA-256 30aea8c81197307d…

MALICIOUS

PDF

72.1 KB Created: 2021-02-07 03:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0cf5f6311831f4899a012f39e35a2c38 SHA-1: 5a1fe356ca56327439262ebf1b52f5ba1d3c77aa SHA-256: 30aea8c81197307d2b5d69183704f740a9f26972fba721486b980e28269dcdd7
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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.
  • 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/wb?keyword=richard%20rohr%20catholic%20answers In PDF document text
    • https://static.s123-cdn-static.com/uploads/4374956/normal_5fce16b10b0c2.pdfIn PDF document text
    • https://fajizaxaro.weebly.com/uploads/1/3/1/3/131381717/2372503.pdfIn PDF document text
    • https://ginuwedisifixel.weebly.com/uploads/1/3/4/7/134744372/4312488.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/5995934.pdfIn PDF document text
    • https://cdn.sqhk.co/fewibefanid/hhQybjd/promo_game_free_fire_offline.pdfIn PDF document text
    • https://xemelavu.weebly.com/uploads/1/3/1/4/131437726/2588339.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405419/normal_60010e6693a05.pdfIn PDF document text
    • https://molesomux.weebly.com/uploads/1/3/2/6/132681378/f35e488cb.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/cKqidhh/pacman_arcade_game_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/kigowabalo/cU65Fir/music_video_maker_with_fx_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470681/normal_601da206cbd1e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kagiwabiluwotel.epizy.com/contaminacion_por_botellas_de_plastico.pdfIn PDF document text
    • http://botiximura.epizy.com/bls_and_acls.pdfIn PDF document text
    • http://kobezitidub.rf.gd/3d_text_photoshop_templates.pdfIn PDF document text
    • http://romipozaxijida.rf.gd/ppt_atonia_uteri.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_off0000df7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7F 5128 bytes
SHA-256: 0a1075676640533c3a4228d84a3d2b8e7aeb0fea697dcd78d68ddaf670cb341a
font_01_sfnt_off0000f0fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FC 10184 bytes
SHA-256: 976a8c076f8b9104fcbf291dd27f18c0c162752318f3b1d0ad36589398a803cb