Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8b88bb112de87a…

MALICIOUS

PDF

72.7 KB Created: 2021-03-02 18:27:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 98d8974aa6d522c54e8b2ed8da63e9f9 SHA-1: 7c98b0c267ca52604edab0ec7254fbd0f744638a SHA-256: 7e8b88bb112de87acf370ec2520f72f5af90d5b6b86c045abb76c17e1eb097b8
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://jumiwimov.ru/strik?utm_term=i+pilot+remote+motor+error PDF link annotation
    • http://choosemadam.site/plane_simulator_3d_mod_apk_happymod6fh20.pdfIn PDF document text
    • https://gavatuwideziwi.weebly.com/uploads/1/3/4/3/134352821/9800938.pdfIn PDF document text
    • http://rugegav.mywebcommunity.org/fallout_4_mods_without_bethesda_account.pdfIn PDF document text
    • http://wurogutevifo.iblogger.org/new_ps2_emulator_for_android_2018.pdfIn PDF document text
    • http://pixubak.iblogger.org/vunolusokasagi.pdfIn PDF document text
    • https://metenesepagozo.weebly.com/uploads/1/3/4/7/134710396/117230.pdfIn PDF document text
    • http://robertferrell.net/phrasal_verbs_list_with_meaning_and_examples_in_telugurq4kh.pdfIn PDF document text
    • http://fexewivu.iblogger.org/group_discussion_topics_for_mba_with_answers.pdfIn PDF document text
    • http://francobusiness.com/24781395522v6m6.pdfIn PDF document text
    • https://vejarava.weebly.com/uploads/1/3/1/0/131070596/xabiwajejoweborup.pdfIn PDF document text
    • http://rapisakaxo.66ghz.com/best_outgoing_student_award_certificate_format.pdfIn PDF document text
    • http://zatorigixoluji.iblogger.org/726508286.pdfIn PDF document text
    • http://nuloriwilorij.scienceontheweb.net/45709298930.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafatiwi.rf.gd/controlled_experiment_practice_worksheet.pdfIn PDF document text
    • http://kezaforow.epizy.com/captivating_eldredge.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_off0000e47f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE47F 4516 bytes
SHA-256: ff30d329632ca5d5142c01a1c66a5e347043ea355b8d5be61b0a3ef0bb1f5638
font_01_sfnt_off0000f3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BE 10076 bytes
SHA-256: 4c060fc83d9193b6e01d8057126bf5961ff4579d9f8d309a2945fd715ef6c8bb