Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1e9e5c6ecb0105…

MALICIOUS

PDF

69.5 KB Created: 2021-02-26 20:46:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fd4831424547765d59b2c277f70c4912 SHA-1: 3e32d91e95c8c0c1a95119d42cf6da0244b515f0 SHA-256: 2c1e9e5c6ecb0105cf98e9ec80efc30ee5150e35ca2bbc306cc5168cace28578
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lozipotod.ru/award?keyword=buy+gta+5+digital+download+xbox+one PDF link annotation
    • http://kukushka.space/firefox_android_import_bookmarks_from_chrome734ms.pdfIn PDF document text
    • https://wofugegiperezaj.weebly.com/uploads/1/3/4/5/134528457/muvexozanoxusu_zaxid.pdfIn PDF document text
    • https://cdn.sqhk.co/zowolanazew/afehcjb/zcube_3d_rts.pdfIn PDF document text
    • https://gunimumatepatu.weebly.com/uploads/1/3/5/3/135313318/lizopizem.pdfIn PDF document text
    • https://raxipova.weebly.com/uploads/1/3/4/2/134234678/7950427.pdfIn PDF document text
    • http://dipazekonowa.mypressonline.com/salavosorabinigo.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/citizen_nighthawk_promaster_eco-drive.pdfIn PDF document text
    • https://sofirutowik.weebly.com/uploads/1/3/1/3/131381411/6479904.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/atuYyhd/26920764095.pdfIn PDF document text
    • http://lozhobelir.space/makalah_teaching_speaking_for_young_learners3d81f.pdfIn PDF document text
    • http://raifaisentapp.online/zarewemenofotoruzipg1tu.pdfIn PDF document text
    • http://savadaqwe.space/london_metal_exchange_steel_price_graphltvn4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ninoxubus.rf.gd/convert_multiple_jpg_to_small_size.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/employee_satisfaction_project_report_mba.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_off0000d03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03A 5292 bytes
SHA-256: c43e23523e8cb56a024ea4d76504c38378453e9fa166029c680701a4171b631c
font_01_sfnt_off0000e274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE274 10980 bytes
SHA-256: 5f462f26021cf0fb00ed0355e39886fe6edfd35142c42234ff1a8fedb70de997