Malicious PDF — malware analysis report

Static analysis result for SHA-256 90beea33eee7f679…

MALICIOUS

PDF

73.0 KB Created: 2021-02-24 03:27:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 727366682ac4377477d1fe4c81742334 SHA-1: 42c2d91bc0cc39bded70cd55850ba94210b4c61c SHA-256: 90beea33eee7f6791477519455d9baceae25e6ac5bf1abe1a6067d514f1693a1
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/wix?keyword=csr+racing+2+apk+unlimited+money+and+gold+ios PDF link annotation
    • http://parexapubep.iblogger.org/the_secret_of_unlimited_prosperity.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379387/normal_5fdf5917c78d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482002/normal_5ff8ee398254c.pdfIn PDF document text
    • http://rumajasajobotod.iblogger.org/26822610852.pdfIn PDF document text
    • https://dodilepu.weebly.com/uploads/1/3/4/4/134444379/4901266.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495994/normal_5fd3ad3bd7f4c.pdfIn PDF document text
    • https://vaxetilunakado.weebly.com/uploads/1/3/4/0/134012354/dovibudibuzez.pdfIn PDF document text
    • https://kagejiwuj.weebly.com/uploads/1/3/4/0/134095923/1109404.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482415/normal_602e6e5b47b23.pdfIn PDF document text
    • https://sikowegapewabi.weebly.com/uploads/1/3/5/9/135975971/gejifivam.pdfIn PDF document text
    • https://tivufotevomok.weebly.com/uploads/1/3/2/6/132682035/rofelikajizer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joxumokuri.epizy.com/17119624625.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/65891745058.pdfIn PDF document text
    • http://gixopesibesuges.epizy.com/96846706166.pdfIn PDF document text
    • http://lazevemu.epizy.com/bosch_washing_machine_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/entry_level_management_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/zexige.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
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE83 5596 bytes
SHA-256: 42a5ec27dfea6ac5447ac24a1a03b51b431a00ca314e818bea43234296b567f2
font_01_sfnt_off0000e13f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13F 4652 bytes
SHA-256: 8649f9181604df69f7b11b23c0616852512170a42dc53fa8f895f2ef15270162
font_02_sfnt_off0000f1bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BB 10708 bytes
SHA-256: 78bf475365ebb4cf5ae1e4cc6e6d3ad1d4ebbebae7282c775fbb674557382353