Malicious PDF — malware analysis report

Static analysis result for SHA-256 1401fb76dc3d78c2…

MALICIOUS

PDF

84.9 KB Created: 2021-03-04 15:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3081bbff0012c3b7dceb4f91f5b47b3d SHA-1: 25cba607244d68f739a948c5afbb92e245300dfe SHA-256: 1401fb76dc3d78c2a163f32526a6d275bd93add752429d4c2229b4750948961a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://mezovuduw.ru/award?keyword=why+does+my+printer+keep+saying+no+paper PDF link annotation
    • https://cdn.sqhk.co/vavusiwi/hhQgcTB/sazutarobixi.pdfIn PDF document text
    • http://summ-ita.space/38590005459nxtf.pdfIn PDF document text
    • http://reduslim-ufficiale.website/food_chain_worksheet_5th_gradecvhan.pdfIn PDF document text
    • https://cdn.sqhk.co/putuziboki/eEgeig6/wheel_of_fortune_video_games_wiki.pdfIn PDF document text
    • http://vknart.xyz/how_to_get_out_of_the_friend_zone_book46pvf.pdfIn PDF document text
    • http://italdom.fun/bokewosevinenheu6.pdfIn PDF document text
    • https://cdn.sqhk.co/mumeriretepi/gljgrPU/super_street_fighter_iv_3ds_character_list.pdfIn PDF document text
    • http://homebig.space/frases_para_biscoito_da_sorteu06sf.pdfIn PDF document text
    • http://jetaxopavajuluw.22web.org/6380029441.pdfIn PDF document text
    • https://cdn.sqhk.co/komagiju/ahipgiq/are_basketball_shoes_good_for_walking.pdfIn PDF document text
    • http://damvglaz2.xyz/57903908911mwoiv.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxaguzifep/ijiieen/basogujipazilokaradese.pdfIn PDF document text
    • http://fullcreditreport.info/vba_code_to_list_sheet_names83fqs.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
    • https://s3.amazonaws.com/sukobogixe/whirlpool_easytronic_stove_manual.pdfIn PDF document text
    • http://xivutunitilema.epizy.com/56589421326.pdfIn PDF document text
    • https://c827806f-f9bf-4fd3-a4ce-e487c020fa79.filesusr.com/ugd/6fd45c_47a72de4145e4141b89602b6e1323ba3.pdf?index=trueIn PDF document text
    • http://zezopuvezo.rf.gd/machine_learning_bootcamp.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/gepupugipatina.pdfIn PDF document text
    • https://e82ff0bd-cb1a-4782-8b92-0a0fb7657660.filesusr.com/ugd/d17951_7b407404b13f44a1bf271520b21f4a0e.pdf?index=trueIn PDF document text
    • https://d7179dab-c972-4501-9f4a-16044ca71e84.filesusr.com/ugd/434f74_e250efcc4b4242839dbab3a34d8a5ce1.pdf?index=trueIn PDF document text
    • https://44034db3-6cdd-4729-adf3-7ccd6afcf354.filesusr.com/ugd/9fe9cc_5b8e9685892c4eddae14ebec273ac3e3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tupofelasujewas/32397563582.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_off00010300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10300 5308 bytes
SHA-256: d366497af122060651e5a8ba63c53e490bd55e23b608d2e26e097d4b25a1f99c
font_01_sfnt_off000114f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114F7 10196 bytes
SHA-256: 10988059a5ba85a0676487153ae28d70f68d61a153e434846c88dec6cf784ba7
font_02_sfnt_off000137cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137CB 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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