Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c99181fc3cd9df9…

MALICIOUS

PDF

71.8 KB Created: 2021-03-05 01:16:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 321faf3c0596574e2fb5b16cba5d7378 SHA-1: d97b65524de58c47ef560271854260f5b8cf4346 SHA-256: 2c99181fc3cd9df92802d1d68f6580e00b077916b5128faab453c5fa3432bed2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/award?keyword=what+are+the+9+quality+standards PDF link annotation
    • https://cdn.sqhk.co/zumedizojas/9jcnjeE/voice_changer_for_discord_mobile_android.pdfIn PDF document text
    • https://govonomuvilikiw.weebly.com/uploads/1/3/4/6/134620083/lifetabutanitopo.pdfIn PDF document text
    • https://jakugogafezokev.weebly.com/uploads/1/3/1/4/131437362/c653023f269d.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/heic0Nh/51736203873.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/ghfhjdf/52681706974.pdfIn PDF document text
    • https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/5290850.pdfIn PDF document text
    • https://wotuterivakevom.weebly.com/uploads/1/3/4/6/134608936/4860673.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/ghjiiin/reckless_racing_2_mod_apk_download.pdfIn PDF document text
    • http://sevibifodome.getenjoyment.net/concepto_caracteristicas_y_clasificacion_de_los_derechos_humanos.pdfIn PDF document text
    • https://fulimutalez.weebly.com/uploads/1/3/4/5/134599943/gufumasuwiravikoxid.pdfIn PDF document text
    • https://vinadesafabav.weebly.com/uploads/1/3/5/3/135305522/2785337.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/bosch_glm_15.pdfIn PDF document text
    • https://dexisuliraj.weebly.com/uploads/1/3/5/3/135346252/sexuvubumapufo.pdfIn PDF document text
    • https://pagevexositikul.weebly.com/uploads/1/3/5/3/135327712/7827115.pdfIn PDF document text
    • https://cdn.sqhk.co/munuluxel/xjigh9n/emergency_veterinary_services_near_me.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/warm_bodies_2013_trailer.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/zumomasugipeno/how_to_turn_on_a_samsung_syncmaster_monitor.pdfIn PDF document text
    • http://wumurunapaxilar.rf.gd/80510733408.pdfIn PDF document text
    • http://zabesawafusoxa.rf.gd/ponaxofuwew.pdfIn PDF document text
    • http://bumitorazefi.epizy.com/bizuwukonijavijeg.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/google_docs_sheets_slides_forms.pdfIn PDF document text
    • http://riwugenesujo.epizy.com/free_powerpoint_templates_food.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/zuvimilarile.pdfIn PDF document text
    • http://bafilus.epizy.com/76711775422.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/operations_manager_resume_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/nationalism_in_india_class_10_very_short_questions_and_answers.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_off0000db3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB3E 5308 bytes
SHA-256: 9a531a25865bbdf0e8bfc4e6f651dd2eeef0c342306428c519ee3e243f43fb03
font_01_sfnt_off0000ed51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED51 10720 bytes
SHA-256: 2c6ee9098213fe116877a9f525514a12fb7c97821a4fb1ccfd29f1b47091ab29

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