Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d6ba63f8de61aab…

MALICIOUS

PDF

71.8 KB Created: 2021-02-26 23:08:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6ab90490c46391fa5e87bd94fa7fef75 SHA-1: 89e33bcb2f6bfa20b948569f33d11f481374653d SHA-256: 1d6ba63f8de61aabbef8717c63399e5302f7049257e4dc26ec6dc80362772634
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://ponafet.ru/award?keyword=trane+air+conditioner+reset+button PDF link annotation
    • http://nujiwuwuxazasu.iblogger.org/have_some_love_childish_gambino.pdfIn PDF document text
    • https://pumutetigowon.weebly.com/uploads/1/3/4/6/134699291/01dd1e1.pdfIn PDF document text
    • https://damasixo.weebly.com/uploads/1/3/5/3/135322107/jopojarufaluxiziz.pdfIn PDF document text
    • https://larulesa.weebly.com/uploads/1/3/4/7/134717423/28319461d19.pdfIn PDF document text
    • http://jetulugu.iblogger.org/epson_perfection_v370_scanner_specs.pdfIn PDF document text
    • https://rekepepijo.weebly.com/uploads/1/3/4/0/134018016/1badcd1b32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366302/normal_5fff0ee1584e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424683/normal_5ffabca86804a.pdfIn PDF document text
    • https://worijuxadije.weebly.com/uploads/1/3/4/8/134863955/9e722f5fc6cc088.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393488/normal_5fdbec7112cdd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tadidemoribezor.epizy.com/mifurile.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/can_t_login_to_twitter_app_android.pdfIn PDF document text
    • http://zezilometup.epizy.com/is_server_boosting_worth_it_reddit.pdfIn PDF document text
    • http://vefugiw.epizy.com/dewosefufodokakaxarupor.pdfIn PDF document text
    • http://fusizizugunu.epizy.com/ramewixojaruwevowi.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/tejomurefudukifiser.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_off0000decf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECF 4992 bytes
SHA-256: adb9fa50d34bd43aa393bf65a8fa05d0f4740052e36bdcaca8ea90e4acca9127
font_01_sfnt_off0000efc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC8 10020 bytes
SHA-256: 72ccd3b18011fd17b3a9c273fb2fb18c5d61bdd3ce5d32208ae0abb4858237b1