Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e196ab617de2840…

MALICIOUS

PDF

69.4 KB Created: 2021-02-08 05:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30fd5dd5281bcbb6b1190a336c78dc7e SHA-1: 5ee74be8ade8d69b5f055bdde6579cc262668c8e SHA-256: 3e196ab617de2840ef941201b57dc9c3579303dacb9d866f20653ec763e70452
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • 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://baarspo.ru/aws?utm_term=vcenter+server+appliance++5.+5 PDF link annotation
    • https://cdn.sqhk.co/zulatobi/yHhc5ef/1001_puzzle_games_online_free.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/FlIryih/siren_head_scp.pdfIn PDF document text
    • https://cdn.sqhk.co/kubasovusi/auNWjjA/v_moda_crossfade_2_codex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367914/normal_6000cab0181d4.pdfIn PDF document text
    • https://cdn.sqhk.co/webepinovet/gQgdAgf/spell_defense_epic_bricks_breakers.pdfIn PDF document text
    • https://radolawijukigi.weebly.com/uploads/1/3/5/9/135992833/vimewedur-bimatinuges-tazibatitivijop-zejebuzotaz.pdfIn PDF document text
    • http://gedawuxofawu.iblogger.org/xoniwawowi.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/Iicbi76/jeraxukorizivezukoja.pdfIn PDF document text
    • https://cdn.sqhk.co/kerosumumato/60n2noz/xomanufuwoji.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/Ojgjcjb/fevixugimezat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473056/normal_5fc67b5882cd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pimisigejofal.rf.gd/certificate_of_completion_format_for_ojt.pdfIn PDF document text
    • http://gipanigiwulaj.epizy.com/xupuwadewijokivawaluve.pdfIn PDF document text
    • http://sawopigemon.epizy.com/black_s_law_dictionary_9th_edition_apk.pdfIn PDF document text
    • http://mipuvofelope.epizy.com/xewinorezodeniganu.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_off0000d3ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BA 5108 bytes
SHA-256: 64c96112fa2111aef469ba7030f59f7a3d2edb709451df26dfd32c0f6b1ab2ae
font_01_sfnt_off0000e53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE53C 10328 bytes
SHA-256: 3a68f6b6cec978115440e6cf266a24f77552586c658d1f27bd266ab299151ab3