Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf617756baf6f28…

MALICIOUS

PDF

68.1 KB Created: 2021-03-01 08:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e7141406d805729420d6017a9e8a23bc SHA-1: f559495b2ecc130dae13d0a97d683843080e0e86 SHA-256: aaf617756baf6f28f95835fd014dd3c1c6e1bf9728e3b203d9b26899ca57f977
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://xajibur.ru/award?keyword=flashpoint+batman+comic+vine PDF link annotation
    • https://lomofoxagut.weebly.com/uploads/1/3/4/5/134524577/ponov-togix.pdfIn PDF document text
    • https://mafobosapufi.weebly.com/uploads/1/3/4/5/134505980/3766973.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481540/normal_602da0a3e5732.pdfIn PDF document text
    • https://xajixaze.weebly.com/uploads/1/3/2/3/132302973/tilululesipebew_pukal.pdfIn PDF document text
    • http://linudanozuno.iblogger.org/9799533485.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407064/normal_6008fc3d959ff.pdfIn PDF document text
    • https://pusasosabuni.weebly.com/uploads/1/3/4/6/134654602/fa412.pdfIn PDF document text
    • https://nibasekugi.weebly.com/uploads/1/3/1/0/131070633/jivuxakutexobinip.pdfIn PDF document text
    • https://zogosozel.weebly.com/uploads/1/3/1/4/131406999/xokaka.pdfIn PDF document text
    • http://jijimaxugixu.22web.org/arcane_mage_pve_guide_wotlk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488103/normal_5fee9a6f2d1fa.pdfIn PDF document text
    • http://wuxemit.iblogger.org/oracle_sql_12c_installation_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fijopuk.rf.gd/android_alarm_clock_music_app.pdfIn PDF document text
    • http://powiwuroda.epizy.com/netgear_prosafe_jgs524pe_password.pdfIn PDF document text
    • http://filanovedo.rf.gd/gegivawovatezidipunutijit.pdfIn PDF document text
    • http://vawekud.epizy.com/lexot.pdfIn PDF document text
    • http://zalufebali.rf.gd/korean_books_for_free.pdfIn PDF document text
    • http://tifiloto.epizy.com/technology_trends_2020.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_off0000cea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA6 5232 bytes
SHA-256: 4257ff5973723f3fc1b1cf427f4c9b85ea51dfcf2031ea3ed5164b0968e7e986
font_01_sfnt_off0000e051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE051 10304 bytes
SHA-256: 6fee749929bc10b453196d976a6696636211849fae773c67a32302050b810849