Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed5bce80f87c790…

MALICIOUS

PDF

60.9 KB Created: 2021-02-15 05:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 99f4cd03fcc35d6c5b929d59d5f060f7 SHA-1: 30bc9129b5925fc768c691e018c00d1e5bfc39f1 SHA-256: 5ed5bce80f87c790b8f4773b57e254e937ba2b4c969320f3e17e2f1f4f073f8f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=stretching+sentences+worksheets+grade+2 PDF link annotation
    • https://cdn.sqhk.co/pisapaxosabo/hhmhgjb/6448119195.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/5gcXkid/beautiful_italian_love_songs_youtube.pdfIn PDF document text
    • https://cdn.sqhk.co/kususarefeja/hNhehe2/96980298097.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/geicgin/best_romance_books_for_teens.pdfIn PDF document text
    • http://tanatedafupex.22web.org/sadizugobegikiloj.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/jjfPhgG/68834113783.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://merojupamen.epizy.com/58927736026.pdfIn PDF document text
    • http://zovawawopo.rf.gd/balanza_de_pagos.pdfIn PDF document text
    • http://suxugumisa.epizy.com/85991591394.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/31017939046.pdfIn PDF document text
    • http://darajakejaxise.rf.gd/video_di_twitter_android.pdfIn PDF document text
    • http://dupetomumipur.rf.gd/80656470213.pdfIn PDF document text
    • http://lolukojalima.epizy.com/84590292798.pdfIn PDF document text
    • http://sixanuramusasit.epizy.com/83746762308.pdfIn PDF document text
    • http://tirinusodobo.epizy.com/circuit_construction_kit_phet_lab_answer_key.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_off0000b209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB209 5560 bytes
SHA-256: ae5ad4cacc72cacb69053ceab893755fa17743ee88ceb24770c72dad687cd698
font_01_sfnt_off0000c506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC506 9892 bytes
SHA-256: e2836f85330ff3066017837c0ee5e75059f125e61b58cf9a28976eb98158ad81