Malicious PDF — malware analysis report

Static analysis result for SHA-256 021cc1d4ff114a42…

MALICIOUS

PDF

70.4 KB Created: 2021-02-28 13:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8b690dadca4a8e5e75cb5c8a5dcf2049 SHA-1: 00323aad2d1872c8cd0d74a73aa5c0790ab0d42f SHA-256: 021cc1d4ff114a42dcd794c7615ed3c2684869873ce8c3107e42b0ee8adafa25
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=how+much+oil+does+my+husqvarna+snowblower+take PDF link annotation
    • https://jesokalatozu.weebly.com/uploads/1/3/4/5/134591365/ca40b5f02b969f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404987/normal_5fe2c73835da6.pdfIn PDF document text
    • http://keksik24.ru/shop_foreman_job_description_templatehfzll.pdfIn PDF document text
    • http://buzifun.22web.org/57801288973.pdfIn PDF document text
    • https://katatowuli.weebly.com/uploads/1/3/4/8/134879603/dogoz.pdfIn PDF document text
    • https://mopebewugo.weebly.com/uploads/1/3/0/7/130776026/d5a736029b.pdfIn PDF document text
    • http://goodsun.fun/95140274496znlrw.pdfIn PDF document text
    • https://cdn.sqhk.co/vevajewez/cgcUjhe/hack_para_bullet_force_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/2Trm2ct/holistic_nutrition_and_health_coach_certification.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455883/normal_5ff62515e86c3.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/739816876932zaib.pdfIn PDF document text
    • http://itanah.space/how_do_i_reset_my_voicemail_message_on_iphonemrrfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465392/normal_5fcff3f03e8d8.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/7kcjjjg/civilization_revolution_2_plus.pdfIn PDF document text
    • http://tuvawom.iblogger.org/dum_dum_cantonment_weather_report.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/zidosozawok/72349133186.pdfIn PDF document text
    • http://melewurimepuja.rf.gd/5th_grade_argumentative_writing_ideas.pdfIn PDF document text
    • http://robabaxagolelez.rf.gd/tafupefix.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_off0000d5b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B5 5724 bytes
SHA-256: c387371e4d17e9da51da85761c9bae02d78475c9ace18c2fb7b3e1e32dda49ee
font_01_sfnt_off0000e91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91A 10408 bytes
SHA-256: 3156c4bc82bc3d6385b284db108e31e5c2abb14c163403fb616461446d1caab4