Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba47e6aae3a6c8d…

MALICIOUS

PDF

78.7 KB Created: 2021-02-21 09:47:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 63d9933a35d33e49e180ae0fb4b5135b SHA-1: c1e5d5c7f3e59643110f6f9d1a74a4f0792bcac8 SHA-256: eba47e6aae3a6c8dab44c5f1df9f3912e07d69899d4b339b9b02b28b4e713cd8
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 0.9998

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://seumenha.ru/strik?utm_term=what+can+you+eat+on+purium+cleanse PDF link annotation
    • http://labiosdewonda.com/492901332980a2vv.pdfIn PDF document text
    • http://maska-respirator.shop/curriculum_vitae_europassetof7.pdfIn PDF document text
    • http://aycotoro0.xyz/pinnacle_renewable_energy_annual_reportuvukf.pdfIn PDF document text
    • https://cdn.sqhk.co/jadepibake/jf9jic2/best_tv_deals_right_now_65_inch.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/iHhichc/car_parking_multiplayer_mod_apk_latest_version_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pabefidinaz/chcTQPg/gifesokowazod.pdfIn PDF document text
    • http://leftoutclub.com/buzejanetaset9xh9q.pdfIn PDF document text
    • http://fruit-ital.space/8558953594288cqf.pdfIn PDF document text
    • http://sportplays.ru/xanafeluvewifazozebenureblo8mb.pdfIn PDF document text
    • http://nonretloli.site/is_there_going_to_be_a_new_dog_man_book5wo59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374848/normal_6023325e96087.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/Fjjjajf/sapog.pdfIn PDF document text
    • http://dihtyar.online/pokemon_dark_rising_2_walkthrough7pm1m.pdfIn PDF document text
    • https://cdn.sqhk.co/duxisabaza/geeHQzE/virus_news_today_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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_off0000e868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE868 5172 bytes
SHA-256: 4cb9e0cb625221f35733f367f4e27c80ad8782a2b337903f650561686505f5b8
font_01_sfnt_off0000f9d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D1 10544 bytes
SHA-256: d95d164e3bbc149a8c3b6f0822bc41045ee4f73de22e78324d2f28fdd58b4ded
font_02_sfnt_off00011dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DCE 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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