Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d4dec7b6ea5551…

MALICIOUS

PDF

76.0 KB Created: 2021-02-05 11:28:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a54f921153cfc47772adc778a7ed4bdc SHA-1: 4b420e7aacbf116780ba0cd6d1efebf4414fa170 SHA-256: 89d4dec7b6ea5551634b4675234c8756f7d037c8f0e666e525c98416f23ee814
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=arduino%20simulator%20windows%20free PDF link annotation
    • https://cdn.sqhk.co/ravawiku/iczjfhj/vugukoze.pdfIn PDF document text
    • https://cdn.sqhk.co/tozimozeka/eThffgj/99464698969.pdfIn PDF document text
    • https://cdn.sqhk.co/gagobuniponi/agh4Ojd/18517450579.pdfIn PDF document text
    • http://dalkomis.website/9028852118gf54t.pdfIn PDF document text
    • https://cdn.sqhk.co/woviwefi/jvgetia/jiratal.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzefoveniri/SFjjQhh/wujalososogolumite.pdfIn PDF document text
    • http://trixy-matrix.space/xowezekibigiwujuvub7b0hs.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/jnVihji/juwawutuje.pdfIn PDF document text
    • https://cdn.sqhk.co/fazofasufiwu/ejcEzjc/seluxewaf.pdfIn PDF document text
    • http://dasaburaxad.22web.org/32298798616.pdfIn PDF document text
    • http://lnstagram-helping.live/mofunujililuguwudq13hv.pdfIn PDF document text
    • http://wipineda.iblogger.org/aloe_vera_face_mask_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dunaditi.rf.gd/naming_corresponding_sides_and_angles_worksheet.pdfIn PDF document text
    • http://jonapepubenej.epizy.com/xideximolaverujov.pdfIn PDF document text
    • http://tugefewose.rf.gd/20910583547.pdfIn PDF document text
    • http://zatojigetafugud.epizy.com/copaxone_generic_form.pdfIn PDF document text
    • http://fetapewifug.epizy.com/sample_contract_between_two_parties.pdfIn PDF document text
    • http://xesepodine.rf.gd/28460606865.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_off0000edf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF7 5136 bytes
SHA-256: b4b5058995819f694d121f5a3447b08047873d5f71d5842c097f062c0a8fcc58
font_01_sfnt_off0000ff68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF68 10312 bytes
SHA-256: 48a48c34082aede588138febd9833791d5ce03d82550e9e7c3c4ad213986e225