Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b13079f8f2e747…

MALICIOUS

PDF

70.8 KB Created: 2021-02-19 21:37:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 91b3c52c41babebffb758988a22932e7 SHA-1: 8d373158a33cc38bc0ee421d8bb3f2e8ccb24ee2 SHA-256: 98b13079f8f2e7479ebea6a345598e865b17b586e2af45b19a62d72c31ac2c50
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://druttle.ru/wix?keyword=moment+of+greatness+bloodrager PDF link annotation
    • http://lupepujalin.iblogger.org/2016_acura_rdx_shop_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzabajixiw/gda8jcX/pressure_washer_extension_wand_ryobi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408983/normal_5fe40b96e3393.pdfIn PDF document text
    • https://cdn.sqhk.co/vikafaselida/MyS4hct/tajerap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452374/normal_602fbdd434cf8.pdfIn PDF document text
    • https://cdn.sqhk.co/lotivadafe/KgjZjbH/galaxy_desktop_wallpaper_meme.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453108/normal_6010f60fec3f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459776/normal_5fe92895e5172.pdfIn PDF document text
    • http://xivagoz.22web.org/movies_like_love_rosie_yahoo_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/68998302557.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/black_background_flower_images.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/4999663029.pdfIn PDF document text
    • http://josuremase.rf.gd/ibm_x3650_m4_server_guide_windows_2016.pdfIn PDF document text
    • http://wozawexopad.epizy.com/lung_cancer_journal_author_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/learn_japanese_grammar_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/soft_skills_syllabus.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/rolobuwuzam.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_off0000d7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EA 5372 bytes
SHA-256: 3378a7c83b03bd5456d585614646c0db6b82cd8785f54486c60eac1d6beeb804
font_01_sfnt_off0000ea22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA22 10428 bytes
SHA-256: 9739e006eb532a6d39e2bbc638d255a6224b1fad8cf9ece33b4bf0e529efaea4