Malicious PDF — malware analysis report

Static analysis result for SHA-256 01806e49d8432604…

MALICIOUS

PDF

77.2 KB Created: 2021-04-05 05:58:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9d4e196fcefae9034de718498e8b6a12 SHA-1: 9519ce80f2c024fe53652631ca3468d9afe44646 SHA-256: 01806e49d84326049f359f94715c9aeed2fe38e5da6cfb82bce4d9e8a5657e3a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dugedepap.ru/strik?utm_term=wagner+steamer+wallpaper PDF link annotation
    • http://terubib.22web.org/hearts_of_iron_3_black_ice_mod_steam.pdfIn PDF document text
    • http://instasale.company/86099746490k9o0.pdfIn PDF document text
    • http://gutemelav.22web.org/cool_last_names_yahoo_answers.pdfIn PDF document text
    • http://prizinsta24.space/html_for_beginners_bookhytey.pdfIn PDF document text
    • http://stonersfranchise.com/grade_2_math_worksheets_canada_printable0upp5.pdfIn PDF document text
    • http://stavki-na-sport.site/tesemosapipefepll9ls.pdfIn PDF document text
    • http://interbank.link/49174054778h6atf.pdfIn PDF document text
    • http://menbp.online/what_if_netflix_trailer_deutschsu1tf.pdfIn PDF document text
    • http://getyourscore.info/fallout_4_loot_how_to_change_load_ordervb6y8.pdfIn PDF document text
    • http://keep-travel.com/tituvaresositadugepn6pyb.pdfIn PDF document text
    • http://playmarket-online.com/46829350406dx2fa.pdfIn PDF document text
    • http://moresukko.ru/23351573662ipni0.pdfIn PDF document text
    • http://orbitan.fun/283588456380zcqf.pdfIn PDF document text
    • http://afterdealer.pro/youtube_labrant_fam_tik_tokqjwag.pdfIn PDF document text
    • http://reduslimitalia-ufficiale.site/zekebugojitiwireraxukolioetzn.pdfIn PDF document text
    • http://verifybadgehelp.com/how_to_make_dovetail_joints_with_a_router_youtubekeebk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mebijatow.rf.gd/arduino_wifi_library.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69574c42-269c-4b6a-8a6b-77932325bb4b/those_who_waited_on_the_lord.pdfIn PDF document text
    • http://mizosaribadadu.rf.gd/what_is_the_name_of_the_shining_hotel.pdfIn PDF document text
    • https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_7a4b8370f926421e9d3d5be07562f19e.pdf?index=trueIn PDF document text
    • https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_49a7a25902f548f18502bc8fb4b4d946.pdf?index=trueIn PDF document text
    • http://pupiloxesafefiz.epizy.com/76014227661.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05caee72-d47f-4ff2-9f94-62bada0f128f/bakafoduvowime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2a54805-4b18-457b-9ccb-16219cb95f8e/ghost_of_spirit_bear_novel_study.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_off0000edbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBE 5244 bytes
SHA-256: c79cb4a47f815922b4bf4cef1f02c6c86ab5e719355869be5039fa71b4cb3015
font_01_sfnt_off0000ff9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9A 11976 bytes
SHA-256: a26cc3a51cbd01a072637773ee1ecd840ede3372303189c9ca8b0d4859211317

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