Malicious PDF — malware analysis report

Static analysis result for SHA-256 22e1b10e63d79d6b…

MALICIOUS

PDF

70.1 KB Created: 2021-03-04 20:47:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6c06e4876d5dec466e92488c15a4d11d SHA-1: 6542e120913547170550fd1b3686fba516747791 SHA-256: 22e1b10e63d79d6bb1aef45e36b53335ceab3ec03847ec0cf87ca5f358dc4fee
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pelibifir.ru/award?keyword=proving+congruent+triangles+worksheet+pdf PDF link annotation
    • https://kaledawuvilef.weebly.com/uploads/1/3/4/7/134727412/3d2c8e358a7a1cc.pdfIn PDF document text
    • https://cdn.sqhk.co/tekunipifob/ggdiaje/fuxizepesugadaxadufed.pdfIn PDF document text
    • https://boxusuvibirux.weebly.com/uploads/1/3/5/3/135308560/pefisixekex.pdfIn PDF document text
    • https://cdn.sqhk.co/jasojime/giijdgj/word_wallpapers_for_iphone.pdfIn PDF document text
    • http://varomevapaxobud.22web.org/32536192406.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/kerakelo.pdfIn PDF document text
    • https://cdn.sqhk.co/sabimejuka/4hgjiie/miwowo.pdfIn PDF document text
    • https://cdn.sqhk.co/wufotubi/cmjhCgi/draw_it_to_know_it_free_download.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/should_i_go_to_disney_world_in_january.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/ASji7hh/outdoor_cat_condo_australia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcf36a34-91fd-4ec2-b564-f3f363829937/10242088160.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2ac4cf2-7904-4449-98b1-0c0028ffd9f9/manual_for_bosch_dishwasher_silence_plus_44_dba.pdfIn PDF document text
    • http://jiporiri.rf.gd/juwizarakemonufedap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2042168c-6a46-4a24-ae23-3a51f1d3ebe1/which_best_buy_jacuzzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74e6217e-832b-49e7-888f-8ba8973ac15a/how_to_change_resolution_on_iphone_8_camera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82e1f382-f19a-4696-aa12-33a0c470aa3f/famous_sun_tzu_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fe7943b-a404-412f-8dce-4eea615820e4/18109878933.pdfIn PDF document text
    • http://punolubumima.epizy.com/birth_plan_template_nsw.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_off0000d4f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F0 5632 bytes
SHA-256: 56f931d90420a1026a667e2b4af85550a53a16f62b85a493e8f34c6784d728eb
font_01_sfnt_off0000e82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82D 10292 bytes
SHA-256: 3b42187bd42cfaad11dfa7c7b689922eb69b85fee76b0fb24ef79349f5954aca

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