Malicious PDF — malware analysis report

Static analysis result for SHA-256 b33bcf25ede7b921…

MALICIOUS

PDF

68.0 KB Created: 2021-02-28 01:35:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 29bcb0bb1031ca3ece19ef0a3f67bbf7 SHA-1: a8ff970db1527e2835d259b681c497bf0b91be46 SHA-256: b33bcf25ede7b9212199168634dd5fa5cb1df825737ee3a87731a9c269861d45
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://jumiwimov.ru/award?keyword=yard+machine+parts+manual PDF link annotation
    • https://xoxisutebigag.weebly.com/uploads/1/3/1/4/131453062/4153214.pdfIn PDF document text
    • http://zomoxesami.22web.org/fafutelofin.pdfIn PDF document text
    • http://bazunujovi.scienceontheweb.net/microeconomics_book_class_11_sandeep_garg.pdfIn PDF document text
    • https://cdn.sqhk.co/dodazija/bhe4cif/castaway_cay_weather_in_december.pdfIn PDF document text
    • http://davupopebuwiser.sportsontheweb.net/peselopufobituvofugeke.pdfIn PDF document text
    • https://werumitepoli.weebly.com/uploads/1/3/0/7/130739038/3513970.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/bgehfUr/loudoun_county_animal_shelter_donations.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/qjjggij/16262974546.pdfIn PDF document text
    • https://cdn.sqhk.co/zelosoza/thdShuq/throne_of_eldraine_spoilers_mtg_salvation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pegowalinasaduk.rf.gd/sufadevefugul.pdfIn PDF document text
    • http://zilomit.epizy.com/bokawavilokularu.pdfIn PDF document text
    • http://jirabasojexosud.atwebpages.com/aftermarket_parts_for_iphone_5.pdfIn PDF document text
    • http://binefiwir.rf.gd/where_can_i_buy_rainbow_fish.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/80307330641.pdfIn PDF document text
    • http://mikipifovusi.epizy.com/95711065203.pdfIn PDF document text
    • http://sopigovo.rf.gd/tesofegadavezisavadelipuk.pdfIn PDF document text
    • http://juludiripo.myartsonline.com/tezopuxomuwalizeraxipeli.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/bugera_v22_infinium_22w_1x12.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/jufapolem.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC270 5044 bytes
SHA-256: db85504058e698b342dd579d18ee3d1a5cca30d66e70e8b35db47d49a2a89380
font_01_sfnt_off0000d35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35F 9860 bytes
SHA-256: 5d49a919159278ff677aa008ff37fcec5d29fd3c3cdd38c500d016f60d94c406
font_02_sfnt_off0000f4eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3