Malicious PDF — malware analysis report

Static analysis result for SHA-256 395af6ecf835e375…

MALICIOUS

PDF

72.0 KB Created: 2021-02-20 06:26:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 565df92053650f68a929b6c5ddca0d5f SHA-1: d1896233a7983ed1003edc86d6fa696a2c10404a SHA-256: 395af6ecf835e375a3c71056819fe6a319daf845b83f8bd4d54dfeecdb9cd212
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://leonvi.ru/wix?keyword=supplement+goals+reference+guide PDF link annotation
    • https://zofitete.weebly.com/uploads/1/3/2/7/132740948/4028118.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/Pjf3fXP/facebook_messenger_mobile_web_browser.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/LibVieK/fazatibotezep.pdfIn PDF document text
    • http://nafugelinev.iblogger.org/fepozasimupeluvisobu.pdfIn PDF document text
    • http://fiwuwoxas.22web.org/calendar_template_spreadsheet.pdfIn PDF document text
    • https://turakenedonatup.weebly.com/uploads/1/3/4/6/134610331/zukukofika.pdfIn PDF document text
    • https://cdn.sqhk.co/xogudililavo/ehi3ge2/lenarevipoz.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/0ighcif/nike_pro_icon_clash_hoodie.pdfIn PDF document text
    • https://cdn.sqhk.co/vumusokutil/fZKggbN/srs_light_honda_civic_2004.pdfIn PDF document text
    • https://cdn.sqhk.co/lusoxepero/4PjjSha/63150077879.pdfIn PDF document text
    • https://cdn.sqhk.co/sexubozadifa/phcuagi/youtube_to_mp3_iphone_online.pdfIn PDF document text
    • https://cdn.sqhk.co/segevenujuka/UghUhjT/the_check_cashing_store_miami_fl.pdfIn PDF document text
    • http://lofipuxokuw.22web.org/nigafodewozakugapo.pdfIn PDF document text
    • https://cdn.sqhk.co/todipageb/hqEggjh/loudoun_county_va_property_search.pdfIn PDF document text
    • https://kazenatujexisof.weebly.com/uploads/1/3/1/6/131637291/fegosipowaxexukuv.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/mjdjfct/bomewexedazanirebedo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dejiwupije.epizy.com/zajomazifiwane.pdfIn PDF document text
    • http://vezoxonu.epizy.com/40823019256.pdfIn PDF document text
    • http://guxodolabisiruj.epizy.com/52770863801.pdfIn PDF document text
    • http://goxakimolo.epizy.com/munibe.pdfIn PDF document text
    • http://tosuniwenalob.epizy.com/wipojitejivokiwubu.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_off0000dce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE6 5580 bytes
SHA-256: 94c786e68205c03ebd5b40476759f790ec8e9d652b377d2aa420446908d42530
font_01_sfnt_off0000efc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC3 10204 bytes
SHA-256: 880c25051e5327c12e9f94a7db371d86ba32150c42e9d51557ea985c85f73e01

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