Malicious PDF — malware analysis report

Static analysis result for SHA-256 67bc7f1be19ae9fc…

MALICIOUS

PDF

43.9 KB Authoring application: Karbon First seen: 2026-05-09
MD5: e26c1b0681a6a87324292c40e31fd9d2 SHA-1: 550daafe855fb4097c10cebf59c611fb52d7a2ae SHA-256: 67bc7f1be19ae9fcd84f689e51e8462656bc79a4308dcad57a4be39b3e4944d9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The primary finding is a large number of embedded URLs pointing to external PDF files hosted on various domains. This technique is often used for SEO poisoning or to distribute further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 http://newholland4wdtractor.com/uploads/1/3/0/7/130775727/8448543.pdf In PDF document text
    • http://kaleidoscoperecords.org/uploads/1/3/0/5/130543848/333497.pdfIn PDF document text
    • http://www.alloutmfg.com/uploads/1/3/0/7/130775466/junus.pdfIn PDF document text
    • http://www.kasey.eu/uploads/1/3/0/2/130271030/kenozepigobij.pdfIn PDF document text
    • http://www.theyellowmustardseed.com/uploads/1/3/0/3/130312986/3564305.pdfIn PDF document text
    • http://pelvicpaincenter.net/uploads/1/3/0/7/130776402/demiz_lamuzinimi_suwopi.pdfIn PDF document text
    • http://www.amorpoet.com/uploads/1/3/0/7/130775598/3380444.pdfIn PDF document text
    • http://amnqualitysolutions.com/uploads/1/3/0/3/130379274/subunanaxujodu-lesodewirifuzu-fixeler-kamuraponiji.pdfIn PDF document text
    • http://djspryte.com/uploads/1/3/0/5/130551585/5903322.pdfIn PDF document text
    • http://nextbuildingforum.com/uploads/1/3/0/6/130620222/rabadepepojemuk.pdfIn PDF document text
    • http://www.southsidebrewing.net/uploads/1/3/0/7/130740143/xolurowireboxedu.pdfIn PDF document text
    • http://citylightstheaters.com/uploads/1/3/0/6/130622101/259c03a489.pdfIn PDF document text
    • http://howmuchtrip.com/uploads/1/3/0/7/130775245/sapodixokufeg.pdfIn PDF document text
    • http://www.lawrenceyouthbasketball.com/uploads/1/3/0/5/130588542/tilifapobubuxudel.pdfIn PDF document text
    • http://bowsnbelles.com/uploads/1/3/0/5/130545199/muxom.pdfIn PDF document text
    • http://nmheartfailuretreatment.org/uploads/1/3/0/2/130288426/9046964.pdfIn PDF document text
    • http://yourmemorablemoments.net/uploads/1/3/0/2/130274151/piwadevo_lavaput_doxisege.pdfIn PDF document text
    • http://corrpass.com/uploads/1/3/0/6/130621290/lokuwumisepo-tosebobuluf-xefog.pdfIn PDF document text
    • http://shopsimplybundles.com/uploads/1/3/0/7/130776314/jipelejesuxoku.pdfIn PDF document text
    • http://webdisk.gilipalms.com/uploads/1/3/0/4/130484005/mimijazubi_mipobewo_rolofoxujok_vuzimoxoguzete.pdfIn PDF document text
    • http://wise-think.com/uploads/1/3/0/5/130550848/xalimiwofele_tijazorutofar_nupavepogevomav_gitisogu.pdfIn PDF document text
    • http://smsupplies.com/uploads/1/3/0/6/130622084/jiweputotita_penob_nurifapo.pdfIn PDF document text
    • http://mobilebillboardspaloalto.com/uploads/1/3/0/7/130774982/seviwifoliwup.pdfIn PDF document text
    • http://www.callmeviktorfineart.com/uploads/1/3/0/3/130313242/lesumasuw_vugilukofetu_nefetawefomanu_jemide.pdfIn PDF document text
    • http://advancedinstallations.com/uploads/1/3/0/5/130590168/dagojusuxodok.pdfIn PDF document text
    • http://gratitude54.pleasingfood.com/uploads/1/3/0/3/130323291/130323291.html#direct+antiglobulin+test+newbornIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5C 16204 bytes
SHA-256: f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d
font_01_sfnt_off00004645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4645 8020 bytes
SHA-256: 0880ec9f5e93ea4487e8567f5235de8bc616d7fc01961d5dba8d54f66899ed0f

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