Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6616d42caae135…

MALICIOUS

PDF

69.9 KB Created: 2021-02-25 06:52:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 555613bebbebf63c677ff17f0f092be9 SHA-1: 86d3c9a8a2b314dafe5ca4d4789e9faa860cdf63 SHA-256: dc6616d42caae135ca17b862a413ea89f8da445e2f95824054e9a9f0b373ca39
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/award?keyword=frankenstein+de+mary+shelley+film+streaming PDF link annotation
    • https://cdn.sqhk.co/bupewazadufa/eupRuGJ/international_business_management_institute_germany_ranking.pdfIn PDF document text
    • http://toppiksnack.xyz/2261390100wfqfx.pdfIn PDF document text
    • http://bestsalestoday.xyz/figure_eight_tasks_answers86jqp.pdfIn PDF document text
    • https://jefabogab.weebly.com/uploads/1/3/1/6/131636769/rekud.pdfIn PDF document text
    • http://frankiearvelo.com/bolanle_zlatan_mp429xcx.pdfIn PDF document text
    • https://cdn.sqhk.co/tilafukefuwe/iaigKjd/zombie_killing_city_shooting_trigger_strike.pdfIn PDF document text
    • https://cdn.sqhk.co/mitajaso/ieifqGs/rotten_robbie_gas_price.pdfIn PDF document text
    • https://bilukejax.weebly.com/uploads/1/3/5/3/135392742/tazonakale.pdfIn PDF document text
    • http://kosodidaxelo.22web.org/backup_entire_android_phone_to_mac.pdfIn PDF document text
    • http://secureappeal.com/lizilepimupegunonutiokxtk.pdfIn PDF document text
    • https://maselevajaf.weebly.com/uploads/1/3/1/3/131398143/seberazagadowelufoke.pdfIn PDF document text
    • https://webegerux.weebly.com/uploads/1/3/4/7/134759049/nasukodogapopijuba.pdfIn PDF document text
    • https://kivoranove.weebly.com/uploads/1/3/4/6/134679810/2dfe5ac6c05d448.pdfIn PDF document text
    • http://firstdoctor.xyz/best_gaming_laptop_philippines_202035hls.pdfIn PDF document text
    • https://fufukarebalomok.weebly.com/uploads/1/3/4/3/134352968/9852011.pdfIn PDF document text
    • https://mupililoxer.weebly.com/uploads/1/3/5/3/135302313/3003842.pdfIn PDF document text
    • http://gajozemexip.22web.org/rekoma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://betiger.epizy.com/dell_inspiron_570_ram.pdfIn PDF document text
    • http://rajixubododafu.epizy.com/blended_vowel_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/57893005986.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/rumepige.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_off0000d377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD377 5440 bytes
SHA-256: 8755a9c663c7ff5eeb034caed6f224bd4bb777fe9cee62c6bfa15b5573235c45
font_01_sfnt_off0000e5dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DC 10608 bytes
SHA-256: fe661a0fc2d53a217bc48b9101a1652744f85ca9c34d67987edd30790c6810d6

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