Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c13861b40b5b1e2…

MALICIOUS

PDF

77.9 KB Created: 2021-03-27 12:06:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 9429347372c000d064264be942442622 SHA-1: fe06613a2e048c37b1c16dad9390d24d6c7fc9f8 SHA-256: 2c13861b40b5b1e2a26f1fa59bb35b1a9e4e433259feeb6a00787ea618f3094d
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used to redirect users to malicious websites for phishing or to download further malware. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.Trojan'. The document body, though truncated, suggests a lure related to a 'Music marketing plan template free download', which is a common social engineering tactic.

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 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.
  • 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://soxebez.ru/strik?utm_term=music+marketing+plan+template+free+download PDF link annotation
    • http://jaxixojuko.mypressonline.com/positive_character_traits.pdfIn PDF document text
    • http://genoray.pro/division_table_1-15mvtew.pdfIn PDF document text
    • http://stroy-level.ru/how_to_write_your_professional_achievementsgd0q5.pdfIn PDF document text
    • http://gosugas.getenjoyment.net/71388188982.pdfIn PDF document text
    • http://bcpzon4segurabetaviabcp.com/jotul_602_price_uk978rx.pdfIn PDF document text
    • http://biniwitovo.mywebcommunity.org/gaxidupovodato.pdfIn PDF document text
    • http://enots.space/maryland_pesticide_core_manualqz7e6.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/donukadizolin/xufezi.pdfIn PDF document text
    • https://6b551870-9d71-4c88-87ac-30bafd697196.filesusr.com/ugd/b27e13_d519e7aa96dc41488d029558a609751c.pdf?index=trueIn PDF document text
    • https://041f977c-1598-48cb-b578-3d63f550c8ab.filesusr.com/ugd/524ae3_a08017af029840e8bcd2804fa1a1d433.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wixanarer/game_alien_shooter_mod_apk_terbaru.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/free_lagu_melayu_full_album.pdfIn PDF document text
    • https://c580675e-8888-491d-8c80-3106eaac86fb.filesusr.com/ugd/c8a981_f4f80d8a2f524b2bb23e250737e7d710.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/blackberry_passport_run_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/xawonuve.pdfIn PDF document text
    • https://32b33340-d9da-4ef7-b3bd-a0ac5134eb71.filesusr.com/ugd/adfa6f_d3109af426764d03a9bab5263d9b01e2.pdf?index=trueIn PDF document text
    • http://woxesizefibugel.atwebpages.com/tumijor.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/branded_2012_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/6363674606.pdfIn PDF document text
    • https://22fea36a-5e19-4af1-b4aa-fe6e1efe0ee9.filesusr.com/ugd/b5a188_2af75b70352947d8879c6903ecb6d30e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zesotat/dufidanu.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/65580322479.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_off0000f259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF259 5636 bytes
SHA-256: 5738120a86d8e40c298c3ecdbfed57ae2598bdeb4ad846e1c394b4c8308b1aae
font_01_sfnt_off0001058c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058C 10872 bytes
SHA-256: cec3b10644239018f2cd6f873cc5595884e63a94d62035bf43fde2663d72402a

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