Malicious PDF — malware analysis report

Static analysis result for SHA-256 e77743824b397292…

MALICIOUS

PDF

67.8 KB Created: 2021-02-25 19:02:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 01f834d706b208a2c7440a91944740d5 SHA-1: dd2833be9cd3aec44eb15c48bd8e902632655867 SHA-256: e77743824b3972921e7e979cbbf49389c7fe43babd8d2f530cebf915a6b19c85
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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/award?keyword=holman+rainbow+study+bible+niv+edition PDF link annotation
    • https://motodamoz.weebly.com/uploads/1/3/1/4/131452818/6cb12.pdfIn PDF document text
    • http://wisopenudaris.22web.org/android_developer_blog_icon.pdfIn PDF document text
    • https://cdn.sqhk.co/jetirivotu/pA8icgj/personal_assistant_salary_atlanta.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/dZc729k/44375561225.pdfIn PDF document text
    • http://suboxobuwofum.iblogger.org/palabrera_actos_humanos_descargar.pdfIn PDF document text
    • http://lefegesitorezod.iblogger.org/gre_argument_essay_pool_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/gikokimofegi/DiheLoy/tegumasiwi.pdfIn PDF document text
    • https://cdn.sqhk.co/webaxepibi/AP1jbhi/61362068702.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tezufawifejede.epizy.com/34222429961.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/colors_tv_app_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/91859321969.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/44420170130.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/52123516336.pdfIn PDF document text
    • http://buvodadixasiz.epizy.com/bittorrent_not_ing_android.pdfIn PDF document text
    • http://mubadel.epizy.com/454172550.pdfIn PDF document text
    • http://nomekerileme.epizy.com/white_platform_sneakers_2019.pdfIn PDF document text
    • http://wofuxuvo.rf.gd/arkit_app_android.pdfIn PDF document text
    • http://fojofediwesifog.rf.gd/guide_book_new_york.pdfIn PDF document text
    • http://tagejoxaluriju.epizy.com/58158975046.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_off0000cb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1E 5328 bytes
SHA-256: 0fc2202f92ac801ea70c3ca313e1c80e821c1921e037858d5b6c2ad1f15f5beb
font_01_sfnt_off0000dd30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD30 10384 bytes
SHA-256: 071b48c9bcffe6af17490802338d11a42b4392946e798560f3e196e27c9c30a7