Malicious PDF — malware analysis report

Static analysis result for SHA-256 db9e5eaf639b9962…

MALICIOUS

PDF

81.4 KB Created: 2021-04-06 00:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ff36033e1134653ce22cadd4fe1887b2 SHA-1: 55ef58a03cf220b200a55d6687093ebb2ca3a990 SHA-256: db9e5eaf639b99624095620537a414b53e28be07cd6319e6ef6f9369eec1fc23
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-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://maypoin.ru/wix?keyword=kolcraft+cuddle+n+care+bassinet+manual PDF link annotation
    • http://xijivedijimidip.mygamesonline.org/brahms_requiem_soprano_solo.pdfIn PDF document text
    • https://cdn.sqhk.co/supekolev/bjgOwhi/wafojufurufuxugexine.pdfIn PDF document text
    • http://shopwithsale.website/modal_argon8_manualkk0fj.pdfIn PDF document text
    • http://memimusisat.getenjoyment.net/26312530743.pdfIn PDF document text
    • https://cdn.sqhk.co/visesefider/H6ji5zs/tusukosafudoxiwalimu.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/GvOmhbN/99447384981.pdfIn PDF document text
    • http://gekiwejal.scienceontheweb.net/48964084717.pdfIn PDF document text
    • http://gopusoduj.mygamesonline.org/bwv_999_piano.pdfIn PDF document text
    • http://debuged.mywebcommunity.org/72888386687.pdfIn PDF document text
    • http://dfds.in/16147285143vtlpn.pdfIn PDF document text
    • http://c-advance.space/telugu_movies_dubbed_to_tamil_freevmzx5.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/nikimofilosusefiwbfwu.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/gjc08hd/unblocked_games_balloon_tower_defense_4_hacked.pdfIn PDF document text
    • http://pemokel.iblogger.org/51672180311.pdfIn PDF document text
    • https://cdn.sqhk.co/kukusagufo/giibxgf/12525735778.pdfIn PDF document text
    • http://finipupote.mywebcommunity.org/it_help_desk_manager_interview_questions_and_answers.pdfIn PDF document text
    • http://misstourist.info/basic_biomechanics_susan_hall_7th_edition6db5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vovakupalujum.onlinewebshop.net/container_dimensions_in_meters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d6787b3-fc67-4caf-8f2c-dae9c4f3099b/python_video_tutorial_for_beginners_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3823874a-33b6-4792-93b5-5df91e20e267/losing_song_price_is_right.pdfIn PDF document text
    • http://kuwijiti.myartsonline.com/how_to_hide_caller_id_on_your_phone.pdfIn PDF document text
    • http://vekamodadon.onlinewebshop.net/58900578687.pdfIn PDF document text
    • http://zefobik.epizy.com/thermal_power_plant_working.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb1edc36-84b5-4f0b-9407-7ccb70adfbdb/zerepodivawarizu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0E 5276 bytes
SHA-256: 47a4cc5a2e04137c468522803af3824434a09c9b024cfa3192212c4ab83bcbf5
font_01_sfnt_off00010fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FEC 11740 bytes
SHA-256: 36a142d5b05ef74fbbd1bab22d7c3f367e5bb329e7a386c4d8d20b4a7510c761

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