Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c6391ef7eaabaa…

MALICIOUS

PDF

71.4 KB Created: 2021-02-24 02:17:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: faced924edabd893bfff90e04359b8c4 SHA-1: cbfd564e5d531df58adcee4bed910f1d365f9ed8 SHA-256: 26c6391ef7eaabaa9c35170f311f7624406753d890ad4fdb62a3746535ec0200
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://bologen.ru/wix?keyword=realtek+11n+usb+wireless+lan+utility+not+working PDF link annotation
    • http://teaapple.space/68866216564nqtin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415321/normal_5ffb2ddb26225.pdfIn PDF document text
    • https://rebumazezip.weebly.com/uploads/1/3/4/8/134860465/b59aebafc1f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500186/normal_601ec6b625eb1.pdfIn PDF document text
    • https://divebofa.weebly.com/uploads/1/3/4/6/134690115/difogofezedomo.pdfIn PDF document text
    • http://japadalifu.22web.org/43039874796.pdfIn PDF document text
    • http://opit.space/573495519902v1zy.pdfIn PDF document text
    • https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/9371653.pdfIn PDF document text
    • http://vodoroding.info/equity_alarm_clock_31022_manual1sw29.pdfIn PDF document text
    • https://lefizedut.weebly.com/uploads/1/3/2/6/132681647/tozitilun.pdfIn PDF document text
    • https://nodararikerat.weebly.com/uploads/1/3/4/8/134885074/5987108.pdfIn PDF document text
    • https://wonikisemuk.weebly.com/uploads/1/3/4/9/134902350/lubetutaba.pdfIn PDF document text
    • http://how2clever.com/29798843886lg0zx.pdfIn PDF document text
    • http://tonalemeketav.66ghz.com/online_brochure_template_for_students.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pojakopov.epizy.com/adhe_kangal_tamil_movie_hd.pdfIn PDF document text
    • http://vepuziv.epizy.com/kufexexakuwejaninamejifo.pdfIn PDF document text
    • http://roninifuwevol.rf.gd/bobipuvobifanuxexusakabid.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_off0000da58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA58 5312 bytes
SHA-256: 3dded672c5c715a68cc8c50d00314307f9201d9615f67fffbfd0966b9c612b03
font_01_sfnt_off0000ec9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9D 10484 bytes
SHA-256: edf714bd7217178ee3c764ee3770dfe2feffa7be82377f111fff65a194d44068