Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a901094ee73a216…

MALICIOUS

PDF

71.6 KB Created: 2021-03-06 10:00:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 49a22150d4a6ad3b2c5a0db5f619a94c SHA-1: b9b56bae56d88c7fde85350e415416ce59081d02 SHA-256: 6a901094ee73a2164c5413c29ecb4623a3fa282f67db33de20f5535bd9fdd42c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xajibur.ru/wix?keyword=goldline+controls+pool+remote+manual PDF link annotation
    • https://cdn.sqhk.co/xupodafib/iBgeNih/23020317134.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485705/normal_5fc8e0ce7b984.pdfIn PDF document text
    • https://cdn.sqhk.co/fexiseme/jqWhjpJ/85757696211.pdfIn PDF document text
    • https://cdn.sqhk.co/juselivo/a2TZfJG/nanemegajawaboxe.pdfIn PDF document text
    • https://cdn.sqhk.co/goronikel/e6hdiav/10951494721.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/Sgfh8C7/my_little_princess_fairy_forest_free.pdfIn PDF document text
    • https://cdn.sqhk.co/rezeribevi/hcgcVFz/printable_emergency_contact_form_for_daycare.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412181/normal_5fdc329e3d43c.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/gihdijz/vikings_score_by_quarter.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_62011d9dd5ce4ebc9f2d403b104572b0.pdf?index=trueIn PDF document text
    • https://689a2394-1721-4ce0-b6f7-af9f1dc0d621.filesusr.com/ugd/0f5b72_9d7aead5690a46feae1d71424bea2545.pdf?index=trueIn PDF document text
    • https://832c8a8d-f05d-46e3-9166-97d9de82ace4.filesusr.com/ugd/432509_64acc37898d446b49c5987c1071929f0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b85d21ef-aabf-48eb-9f72-094afaa9fd6e/90515499280.pdfIn PDF document text
    • https://52c77544-2eb8-427c-ad0e-a8a7e2ea9366.filesusr.com/ugd/93288f_b6679cbc60a74f0b9b3840b8bb37ddaf.pdf?index=trueIn PDF document text
    • https://5d3a3edc-1384-4eb0-a354-174dd54c13aa.filesusr.com/ugd/7f5dc5_fda17aa6f9ec4a4e9b85aba4573cc022.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b11993ab-300d-4c24-8e56-26674c36e58a/korn_no_place_to_hide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fdbe92e-90ea-4d52-8078-4d9065aafe2f/60825198520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86c01497-37f1-4825-8234-efe5645c74c2/the_big_short_what_happened_to_michael_burry.pdfIn PDF document text
    • https://f9c380c0-3c9a-404e-8c76-a924832b335c.filesusr.com/ugd/9c8fb9_0558cb57218a461ab1c836652c3f3b4a.pdf?index=trueIn PDF document text
    • https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_ab87d6e9d83f4444a24668e97bf9d935.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8737107a-4f4c-4264-b042-b3ce74e86761/53291461475.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_off0000dc5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5E 5252 bytes
SHA-256: 46747315694786eedbde4aee4ce31813ea8746d4b5cafbc57e5cd44729841746
font_01_sfnt_off0000ee22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE22 10196 bytes
SHA-256: 6312d0f868faa89cb2d78f0267c5fd71f4bf69973d0b709a5e24959b01aa48c5

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