Malicious PDF — malware analysis report

Static analysis result for SHA-256 c179fec4c1bfe0f4…

MALICIOUS

PDF

71.8 KB Created: 2021-01-30 03:21:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 393aa60265dcc9212fab94209f9e4796 SHA-1: ef5004209dcdc1211f1ea8f1b6e79a66eb52cb3f SHA-256: c179fec4c1bfe0f4b5945ab52c59e3c5af1a6beaafb805e122dbc77448a123bf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wb?keyword=where%20does%20kidcity%20family%20live PDF link annotation
    • https://tamilavijunaw.weebly.com/uploads/1/3/4/5/134506647/gipotufexem-ruruxufat-famuximun-winupinax.pdfIn PDF document text
    • https://ratisajaruniz.weebly.com/uploads/1/3/1/4/131455275/munegu.pdfIn PDF document text
    • https://pefisidedufe.weebly.com/uploads/1/3/4/9/134902532/61420665d3803.pdfIn PDF document text
    • http://pimolala.22web.org/93700419677.pdfIn PDF document text
    • http://fubesewokelo.22web.org/new_zealand_clinical_guidelines_for_stroke_management.pdfIn PDF document text
    • http://fojozefamofu.22web.org/28422086697.pdfIn PDF document text
    • https://fasiwuwazaxeba.weebly.com/uploads/1/3/1/4/131438460/4f743.pdfIn PDF document text
    • https://zisifogadudup.weebly.com/uploads/1/3/4/7/134765868/dd2daa2f92326.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/pokixovuxik/careless_whisper_audio_free.pdfIn PDF document text
    • http://xewipevi.rf.gd/reporting_dangerous_dogs_ireland.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/wubowevexuxagula.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/adobe_maker_excel_add_in.pdfIn PDF document text
    • http://wanedinak.epizy.com/vozowal.pdfIn PDF document text
    • http://fetapewifug.epizy.com/comedy_movies_bollywood_2017.pdfIn PDF document text
    • http://depebovibu.epizy.com/sarcasm_get_scared_piano_sheet_music.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_off0000de00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE00 5500 bytes
SHA-256: edae22d7927a8f65cb9e18c9543a91d15219bbff1bb50151309d4baae1548feb
font_01_sfnt_off0000f0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A9 9884 bytes
SHA-256: cb20b4c10005b6e0bc6650e44bb52127be5a1fbde62d305c7930be4749d0e985