Malicious PDF — malware analysis report

Static analysis result for SHA-256 f39fd1dae6932706…

MALICIOUS

PDF

80.0 KB Created: 2021-02-26 19:05:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a2be7cb285c68407c4657a011ca1005e SHA-1: 43bf7395a6377f4edd59dcd7bf203a91121e486a SHA-256: f39fd1dae69327061353d02d379dc6eb95237e07ccc3387e4d9a39e5021e417e
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1190 Exploit Public-Facing Application

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'SE_MFA_LURE' strongly suggests the document is designed to harvest credentials or abuse multi-factor authentication, likely by presenting a fake login or verification page. The embedded URL points to a domain associated with this phishing attempt, further supporting the attack pattern.

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://xezojetit.ru/award?keyword=maytag+washer+code+e01+f09 PDF link annotation
    • http://timurberg.ru/best_advaita_vedanta_quotes7i43e.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/QihqOif/75645104626.pdfIn PDF document text
    • http://g2am2e.xyz/jinuvopibazozihdo7.pdfIn PDF document text
    • http://fbdirect.site/805836257773ltjo.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/qgcKrhj/car_racing_games_apk_free_download.pdfIn PDF document text
    • http://meetcabinets.xyz/204498627790crje.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/jaRYRVq/get_real_followers_for_instagram_faz-_tags.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/princeton_review_mcat_chemistry.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/13358414675.pdfIn PDF document text
    • http://magivuxitafexox.rf.gd/bogumosika.pdfIn PDF document text
    • http://mowigibimubepi.rf.gd/the_greatest_salesman_in_the_world_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/wiviniwofumiguk.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/suloladekezo.pdfIn PDF document text
    • http://gudukamu.rf.gd/captain_america_vs_iron_man_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/juvunafafajiwevo.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/gikosozu.pdfIn PDF document text
    • http://wonegesaf.epizy.com/rufuf.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_off0000fa29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA29 5800 bytes
SHA-256: c2e47885c3bc0e6f9a0c8d002f12c04df48f05c216fde780af9f2182e6582f15
font_01_sfnt_off00010e10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E10 10872 bytes
SHA-256: 1591cefecca2bc67e27dc503baa0a0270eef1e066c2e859bb0590534fecdff69

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