Malicious PDF — malware analysis report

Static analysis result for SHA-256 924ea465905c0bdb…

MALICIOUS

PDF

77.9 KB Created: 2021-03-01 23:49:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f5c089a0d24b949022356b938774228f SHA-1: 12ae8d78bee67c54742c7f758a629ed513e60a14 SHA-256: 924ea465905c0bdb7a755998667d3445398cceafa16462f62e8635d925af802c
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/award?keyword=what+happens+to+shares+when+a+company+goes+public PDF link annotation
    • https://cdn.sqhk.co/wepunajexiju/OjjghiL/12422753831.pdfIn PDF document text
    • https://fepobewute.weebly.com/uploads/1/3/5/3/135386667/2569928.pdfIn PDF document text
    • https://doselarifiniwa.weebly.com/uploads/1/3/2/8/132814949/davivaputezer.pdfIn PDF document text
    • http://bapebofefo.22web.org/36776063517.pdfIn PDF document text
    • http://salufogi.iblogger.org/36282877336.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497646/normal_5fe099c9cb701.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490929/normal_5fda538c78f05.pdfIn PDF document text
    • http://didezidise.22web.org/53366177430.pdfIn PDF document text
    • https://risimapi.weebly.com/uploads/1/3/4/3/134321435/xutobizezo_tizizilokino.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/fizup/how_to_use_a_honda_gcv160_pressure_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/67718449900.pdfIn PDF document text
    • http://badokelo.rf.gd/35481496045.pdfIn PDF document text
    • http://mufifofoge.epizy.com/luxovagelu.pdfIn PDF document text
    • http://vosimamasi.epizy.com/7159884208.pdfIn PDF document text
    • http://xeroxuzowi.epizy.com/balunga_toka_odia_film_all_song.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_off0000f1ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AD 5696 bytes
SHA-256: d563d4deeca8385c04a17f5ff78e9d25c9da95bcace5c6d0f48a3dfe82d568a3
font_01_sfnt_off00010501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10501 11048 bytes
SHA-256: 276181e66344a8191b450d9d5ff080a0e6a30f16a2c3b47c7a1fef5247256448