Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b320e66323a6ba…

MALICIOUS

PDF

68.7 KB Created: 2021-03-05 03:50:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 14015f0452872da8c5d1c572996c1bb4 SHA-1: 51153ec65cf8345035e3591a70ec19ace9a60eea SHA-256: 06b320e66323a6badce8d0a0e4b7fe340d3043fecbdae0f059351e837ce14c33
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 0.9996

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://ponafet.ru/strik?utm_term=sub+zero+650+parts+list PDF link annotation
    • https://cdn.sqhk.co/gogojiranat/8NlPIv7/hill_climb_racing_best_vehicle_for_seasons.pdfIn PDF document text
    • https://cdn.sqhk.co/kakapoxavu/b9hhQLB/easy_bowling_tips.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472503/normal_5fc90955ed32f.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/philips_universal_remote_codes_srp3013_27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375908/normal_600e77df61b57.pdfIn PDF document text
    • http://lupazul.mywebcommunity.org/the_laramie_project_play_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/tisojubew/cQCYjhx/47265317932.pdfIn PDF document text
    • http://bibivire.mygamesonline.org/97945896836.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369796/normal_600315772d032.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405419/normal_5febf675148c8.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/l9gdBif/14928010161.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ginowane.onlinewebshop.net/what_is_pdp_controller.pdfIn PDF document text
    • https://f11c4bf2-12a6-49f8-9590-07a94b689168.filesusr.com/ugd/11276f_2b7440768bde4deaa5b2824b57fe8f41.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/whatsapp_gold_apk_2018.pdfIn PDF document text
    • https://53860ffb-5975-4088-b838-5c82367c2827.filesusr.com/ugd/0d2908_13e851f53e424a4e85fd29adde29bc9f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/the_christian_in_complete_armour_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/self_evaluation_answers_examples.pdfIn PDF document text
    • https://9eaa565e-fb97-40b4-b096-d6760803f699.filesusr.com/ugd/55e2c6_238057c3397a478f94ccc2f67bdc0bf3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wupagivoz/how_to_change_password_surfboard_sbg6580.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/11521073239.pdfIn PDF document text
    • https://2c5a832e-93c4-4ab0-bef0-969ef348d747.filesusr.com/ugd/cc5daa_d43e0180742a466e86b43a7a22fc8254.pdf?index=trueIn PDF document text
    • http://vafitinupisojud.onlinewebshop.net/asus_m5a78l-m_le_usb3_cpu_support_list.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_off0000cd31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD31 5528 bytes
SHA-256: 172b28cb7ff65f0eb704670950be9b2f57f3de0365fd449daba8902fc1ff5695
font_01_sfnt_off0000e005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE005 11028 bytes
SHA-256: 1124e1b198ff460cf7dab075f68b064e4ddbfeebe16ff4d0945700e0becb1e4f

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