Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ff02ddc09ddebe3…

MALICIOUS

PDF

99.2 KB Created: 2020-12-28 04:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 43c709014b6bb65533c10a4f537839ad SHA-1: 843deb11d291333a7997dddc9ca956267177982c SHA-256: 1ff02ddc09ddebe39174ba5abc7ea2ee3b3937185029089861d9debae6d06ec8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/123?utm_term=plato+five+dialogues+pdf+hackett'. This URL is the primary indicator of malicious intent, suggesting the document is designed to redirect users to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=plato+five+dialogues+pdf+hackett In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375358/normal_5f89554eda143.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424666/normal_5f9b196954bf5.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/jyhbjaN/20920162947.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5f99603c94597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372723/normal_5fe40b16f18b9.pdfIn PDF document text
    • https://cdn.sqhk.co/moradivovep/bTTUghb/omg_that_s_literally_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407562/normal_5f979f81760ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455883/normal_5fdad12125b09.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/ciahd1X/46469458146.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8f3947f-239c-4f34-b6fa-3f67479f24a3/download_game_of_thrones_season_8_episode_4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb55f0cc-19e0-4720-b78b-65276e36fb99/bakipiwosoril.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a8346ff-c95c-4fc4-8a72-8e56b0a7905e/refog_versin_de_grieta_de_monitor_p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57dd0522-85fd-488a-9ccd-1f4650fd08af/dbt_book_linehan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38a7d09d-9d68-4770-ac8a-c4b10223f959/webunedejexe.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/anganwadi_form_fill_up_2019_west_bengal.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_off0001475f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1475F 5444 bytes
SHA-256: c924eb7b42a06017ab0cb0d711ef72b119bcb2510c282566cd9b6eb2b88c61ac
font_01_sfnt_off000159fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159FD 11220 bytes
SHA-256: 4fe4b422acf5d7470fdfb7085d261f7ea96f7a06f0ba1011145782e76ad210c3

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