Malicious PDF — malware analysis report

Static analysis result for SHA-256 900e9af8a1c2a9e1…

MALICIOUS

PDF

73.2 KB Created: 2021-03-01 03:18:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d1dd891b70b41f3367423c69abee54b1 SHA-1: 05944b4cf123631b0912f83b3e16ecf4509835ed SHA-256: 900e9af8a1c2a9e1463244baedc892a9e431b722dd69fcf3f1cba213df2f8683
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gimoguvi.ru/wix?keyword=savoureux+pro+line+ice+maker+instruction+manual PDF link annotation
    • https://cdn.sqhk.co/nenafodud/D8gljbt/21319838724.pdfIn PDF document text
    • http://kamini33.ru/diablosport_intune_i3_platinum_reviewi610w.pdfIn PDF document text
    • https://puxekubokoru.weebly.com/uploads/1/3/4/6/134683715/13c9f2ae.pdfIn PDF document text
    • http://tafugegajotu.mygamesonline.org/quotes_from_the_adventures_of_huckleberry_finn_about_jim_with_page_numbers.pdfIn PDF document text
    • https://senorori.weebly.com/uploads/1/3/4/6/134641151/9758540.pdfIn PDF document text
    • https://xoxovumalojiru.weebly.com/uploads/1/3/0/8/130874224/gijoxar.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/fUjfc3p/mizukigoj.pdfIn PDF document text
    • https://lokawinopigu.weebly.com/uploads/1/3/2/7/132712062/a58d492e25acb1.pdfIn PDF document text
    • http://fojogil.iblogger.org/flora_vegetation_brushes_for_procreate.pdfIn PDF document text
    • http://sujabupinoda.scienceontheweb.net/irritrol_rain_dial_6_station_outdoor_controller.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/dibuduwapudifizamesikepu4psmz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rujidafedisezu.atwebpages.com/fuzapamegodegukelixe.pdfIn PDF document text
    • http://wuxodevidupibe.epizy.com/34823576766.pdfIn PDF document text
    • http://nelivizazepafo.epizy.com/pdf_bacterias_gram_negativas.pdfIn PDF document text
    • http://kivevufawonin.rf.gd/easily_confused_words_worksheets_8th_grade.pdfIn PDF document text
    • http://jawegoxizifiti.epizy.com/99650789878.pdfIn PDF document text
    • http://laragusezeji.rf.gd/kovidomojuvikeret.pdfIn PDF document text
    • http://mubomapobe.epizy.com/articles_of_incorporation_sample_template.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_off0000de96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE96 5376 bytes
SHA-256: 032af2532552abdf28ab7a6ca54d54b485a34b3ad77253c9b2a5c84b1e4be123
font_01_sfnt_off0000f0cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CF 10872 bytes
SHA-256: f983478cb66806a604785d951823c068425914b061a04cb961ebaec3dddc93a9