Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ba98111f212748…

MALICIOUS

PDF

81.2 KB Created: 2021-04-01 00:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ddb6b40875edc32931d344b9048d25c0 SHA-1: c22c6aca9fa6d4f071a2180c5e427d87a80f3479 SHA-256: 30ba98111f2127481a6d8a10b802999785aea16a571e9696fbcbcd8e1308bbae
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 0.9954

Heuristics 5

  • 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 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://midufefew.ru/123?utm_term=spoof+caller+free PDF link annotation
    • http://1xbet-regi.site/85887139567ey07a.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/limiting_adjectives_worksheets_for_grade_3.pdfIn PDF document text
    • http://lnstagramcopyrighthelps.com/nakubinojaludpq57o.pdfIn PDF document text
    • http://mexawolin.medianewsonline.com/najukovo.pdfIn PDF document text
    • http://fivadoguna.medianewsonline.com/80_meter_delta_loop_antenna_design.pdfIn PDF document text
    • http://masalev.ru/doxop9k9u6.pdfIn PDF document text
    • http://vixilebi.iblogger.org/coco_bistro_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/jhihge1/57322021189.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/wgdgdXL/78629474282.pdfIn PDF document text
    • http://matawobedopikam.mywebcommunity.org/dog_star_arthur_c_clarke.pdfIn PDF document text
    • http://datinge.site/honeywell_ct31a1003_user_manual1l41s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sowonuvawas.rf.gd/wabodegaramimetadabapuv.pdfIn PDF document text
    • http://vexowiwoputam.rf.gd/gospel_choir_performances_london.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de03f090-2375-4bf9-8ded-6eaeaf107ddb/do_roku_sticks_have_bluetooth.pdfIn PDF document text
    • http://xonukekavufimil.epizy.com/87486113397.pdfIn PDF document text
    • http://texatopewewew.epizy.com/53313029135.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6503e35a-b498-4126-984d-aefa9eff8cc2/how_to_reprogram_auto_gate_remote_control.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e407a30c-bc3a-4ade-b910-ff0d75cdb891/tasapekogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/902dc6f1-5e62-4dd4-b764-da40ce6e05e6/is_photography_a_creative_art.pdfIn PDF document text
    • http://rotufixijisadi.onlinewebshop.net/97866927031.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87be9c51-fb45-4e5e-883b-1be478c4ffda/gitominerered.pdfIn PDF document text
    • http://loxosonupod.rf.gd/que_es_el_metodo_canvas.pdfIn PDF document text
    • http://nibedob.rf.gd/accounting_information_system_ppt_james_hall.pdfIn PDF document text
    • http://zikimopotefeva.epizy.com/caseinato_de_calcio_informacion_nutricional.pdfIn PDF document text
    • http://fubolorira.epizy.com/zidurexumofulix.pdfIn PDF document text
    • http://kudogal.rf.gd/obc_caste_list_in_ap.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_off0000e9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EF 6984 bytes
SHA-256: 667a071f2c8240d1e225df34b830b5f5668a67c2f2a66e6b8b3e0e0fb9092749
font_01_sfnt_off000100ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100EA 4936 bytes
SHA-256: 1c5bc1aa8a1df943101ac0565ce4cdfba3cd2a6ea3ff1a727552822464fa3462
font_02_sfnt_off000111c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C4 11004 bytes
SHA-256: 246c9b03d5290b75fcefd10c1dd48d36fdb6d569ec34d478e35fd5257ea24186

Open this report in the interactive analyzer, or submit your own file for analysis.