Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c342dba27fbdd6…

MALICIOUS

PDF

70.5 KB Created: 2021-03-06 10:02:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b1e31c751201a8a278b3e098f6673d58 SHA-1: 6f6bd9ef62f53db9ebaf5ce39bde08b4e5409c63 SHA-256: 22c342dba27fbdd6ac1e7c8f1c0f1cc16c894cfd7742cafb2598e98f12be1cef
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/award?keyword=optical+fiber+communication+pdf+govind+p+agrawal+download PDF link annotation
    • https://cdn.sqhk.co/zoribakim/jaihE8s/pureflix_app_on_xfinity.pdfIn PDF document text
    • https://fevufimekosiso.weebly.com/uploads/1/3/1/1/131164497/998ddbd9b4c1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392457/normal_60325857764a7.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/jhniaCj/live_wallpaper_hd_background_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/pjajgjh/96969635524.pdfIn PDF document text
    • https://sabiwivilo.weebly.com/uploads/1/3/4/3/134316676/b19bd.pdfIn PDF document text
    • https://rezibufebaxiban.weebly.com/uploads/1/3/2/6/132695258/nepufujize.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/Dhbgfsj/xobunojuza.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/3IghEic/redeem_through_movies_anywhere_or_itunes.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/jjangjg/communism_meaning_in_urdu_and_in_english.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/666JPyA/free_word_printable_calendar_templates.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486997/normal_5fc95270031ca.pdfIn PDF document text
    • https://zewerigavuj.weebly.com/uploads/1/3/2/6/132681779/pogofijarosal_gasobe_vikuzu_maxutawupotop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://03dfb0eb-7fe6-4188-ad87-ea2b88df7b19.filesusr.com/ugd/f967ac_5034cfcbbfb74138bd49d9be2736862e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/68b5f3c1-6b22-4a7f-aeb3-0496728bcf3c/doxofix.pdfIn PDF document text
    • https://6d8b2927-5c4d-40df-b593-c6bd35e19528.filesusr.com/ugd/1adac8_fc45a417c2a8442fbcfc6f602d5c0fcc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b5c39e6-bb77-445b-af17-516e5babe5a6/matrices_complejas_en_ti_89_titanium.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f297a039-c4a1-4c02-ba8d-fb57b5ddd6be/vapubixitobozorukura.pdfIn PDF document text
    • https://9f9bd9fa-00fe-4673-b34e-9a629881f524.filesusr.com/ugd/09273f_250f8ab0a03a40c98a8782ff8f610de9.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e01f0910-3de3-4a5b-bbda-84d2b75175d7/39902659838.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_off0000d56a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD56A 5616 bytes
SHA-256: c3daa963c2244cef8e0597527d9593ee5dd39ceca71887f4b69f6b3534191f5c
font_01_sfnt_off0000e87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87E 10288 bytes
SHA-256: b91128d301353048f3b59ab482a91d8d5063569d00add52d7f14390eed43a500

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