Malicious PDF — malware analysis report

Static analysis result for SHA-256 9805f0bc3c882c1b…

MALICIOUS

PDF

75.0 KB Created: 2021-02-26 01:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f8b124f90d0ffbc0fa4f32870e7af12f SHA-1: bd09212101b00872b1d18af451c0ae4937801228 SHA-256: 9805f0bc3c882c1b92a1072b36060e2fb7ff547032f7f104a21c7a4ecf27374d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bologen.ru/wb?keyword=whirlpool%20quiet%20partner%20ii%20dishwasher%20filter%20location PDF link annotation
    • http://notdull-eng.online/the_challenger_sale_summary_by_chapternnbxw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448720/normal_602bdad64d1a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410694/normal_5fd2f4ff95c01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489740/normal_60143a479a076.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/5730496.pdfIn PDF document text
    • http://handler-autoscout24.com/anatomy_and_physiology_laboratory_manual_7th_editiongbdlx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487625/normal_601c5e41d1837.pdfIn PDF document text
    • http://doordash.link/how_to_train_your_dragon_toothless_cutedjbxd.pdfIn PDF document text
    • http://bavedibigilomit.66ghz.com/22598421493.pdfIn PDF document text
    • http://raisinsapp.pro/pemiwusijariree7nos.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/takebemanijewok/kakuro_combinations.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/big_ideas_learning_math_blue_answers.pdfIn PDF document text
    • http://fezadup.rf.gd/boxholder_request_format_form.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/vobofowaleridaxebavuwo.pdfIn PDF document text
    • http://diruxepuf.epizy.com/aruba_clearpass_policy_manager_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/how_do_you_find_the_height_of_a_triangle_using_trigonometry.pdfIn PDF document text
    • http://tizovosavudufi.rf.gd/how_to_get_the_sword_from_the_lady_of_the_lake.pdfIn PDF document text
    • http://zaxigadanu.rf.gd/latest_android_software_version_2019.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_off0000e773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE773 5472 bytes
SHA-256: 9db089ca484353299f7dcc8964a0b3378fce94d9c0e8de889042d41ecd49e0ac
font_01_sfnt_off0000fa22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA22 10636 bytes
SHA-256: 345cabd6fe91aaf7745e94611c1c83789ffefd6de0c51c5a172015ceaefbd617