Malicious PDF — malware analysis report

Static analysis result for SHA-256 296d99387361c7b4…

MALICIOUS

PDF

77.4 KB Created: 2021-03-23 00:09:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 2ca20c6df37cd2c08e76ebd8ee4dde51 SHA-1: ad9fa097c7211d8b6d897eb5836054e5d22f6718 SHA-256: 296d99387361c7b4451db4a57e4b2938709f558a3f68492f8595ef9fb2d6ac32
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URIs, including one pointing to 'botokaw.ru', suggests the document is designed to redirect users to potentially harmful websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a pattern of using disposable hosting for link farms, commonly associated with phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://botokaw.ru/strik?utm_term=tesla+model+3+price+canada+used PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4382779/normal_5ffb51992742d.pdfIn PDF document text
    • http://dasazopemobor.mywebcommunity.org/49432742561.pdfIn PDF document text
    • http://1s.london/codigo_civil_de_puerto_rico_1930wrh98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366010/normal_60346fa3b6cf0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466996/normal_6004ecff109b1.pdfIn PDF document text
    • http://philonio.online/optimum_channel_guide_edison_njlln04.pdfIn PDF document text
    • http://silkhfig.bid/79142909932xah01.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/hhidujf/voice_recorder_app_download.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/maytag_bravos_washer_error_codes_f5j6jyc.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/how_many_decibels_is_a_quiet_dishwasher.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449187/normal_6038c5555b852.pdfIn PDF document text
    • http://clipshd.design/guwisafenejoruxovutuxieo4h5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384825/normal_6045e6944610f.pdfIn PDF document text
    • http://suzupuwejal.mygamesonline.org/how_much_is_fire_god_rocket_league.pdfIn PDF document text
    • https://cdn.sqhk.co/xomakonezema/chihhha/survival_lessons_from_the_amish.pdfIn PDF document text
    • http://dakaxox.22web.org/oxford_picture_dictionary_english_spanish_second_edition.pdfIn PDF document text
    • http://fomigiv.mypressonline.com/role_of_explorers_in_colonisation_of_africa.pdfIn PDF document text
    • http://bivozebavi.iblogger.org/occupational_health_hazards_and_safety.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mafakizukizunof.epizy.com/how_to_make_a_virtual_quiz_more_fun.pdfIn PDF document text
    • http://fojamemu.epizy.com/bowixu.pdfIn PDF document text
    • http://magetamuwunaze.rf.gd/13074633123.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_off0000f0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B1 5332 bytes
SHA-256: 205661a9a7db3c7a57bfc1147fb9910ce9a17ad56b46820c2ef2c958200e890b
font_01_sfnt_off000102b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102B4 10992 bytes
SHA-256: e384d8cc334daafdbb47c1a88b9c86161b1ef9af184a78ea84905cf980eaacfa

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