Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca09d5da81c7743…

MALICIOUS

PDF

84.7 KB Created: 2021-02-22 14:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9f8e6bf20ed95dfea2d2a5a1dddf8cf6 SHA-1: b58a5e20ad4257ba45168a818bd1321b0b9a908f SHA-256: 9ca09d5da81c774357bd1003b77a493946f1fa89a4f89ee106d5eedbfc28f323
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://jottigo.ru/aws?utm_term=what+is+survival+of+the+fittest+theory PDF link annotation
    • https://ganaletikuwefe.weebly.com/uploads/1/3/4/3/134306697/6858848.pdfIn PDF document text
    • https://morogixifidogaj.weebly.com/uploads/1/3/4/4/134497599/dee39049c4032c.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/ZiWha8q/pamamofakajales.pdfIn PDF document text
    • https://bigikudas.weebly.com/uploads/1/3/0/7/130775628/magomugis.pdfIn PDF document text
    • http://gevixadita.22web.org/55399126737.pdfIn PDF document text
    • http://sanasesuj.iblogger.org/23250672555.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wozilololigib.epizy.com/rizupawiladaxukok.pdfIn PDF document text
    • http://gojexigubobe.epizy.com/manual_walkie_talkie_handy_motorola_mh230r.pdfIn PDF document text
    • http://xukixefi.rf.gd/algorithms_dasgupta_solutions_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/nouns_verbs_adjectives_and_adverbs.pdfIn PDF document text
    • http://bazokupakem.epizy.com/cig_geometryczny_q0.pdfIn PDF document text
    • http://kifozelig.epizy.com/commandos_2_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/lg_8.5kg_top_loader_washing_machine_reviews.pdfIn PDF document text
    • http://vipukexevuwe.epizy.com/49684333665.pdfIn PDF document text
    • http://bedigetulo.epizy.com/45940612327.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_off00010b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B0E 5032 bytes
SHA-256: 2e242bef2bd748a845fad67535d5a7eb6bb24049e695b8c6b2500a9acc255b0d
font_01_sfnt_off00011c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C3C 11852 bytes
SHA-256: 0b2c0a40e58ba5163cd195c460c20422355f97217017780731a8353fecf9a833