Malicious PDF — malware analysis report

Static analysis result for SHA-256 0efa80cc148cdc29…

MALICIOUS

PDF

41.1 KB Authoring application: Adobe PDF Library 9.0
MD5: ab901691bd8b1738769d176e2399fd01 SHA-1: 146609bda398f5ceb22c039fafad77e4e5e2ab61 SHA-256: 0efa80cc148cdc2974e3770a0ea23ce478d1cd429ca760440c698fd00947eaaa
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains a large number of embedded URLs pointing to external PDF files, suggesting a tactic to manipulate search engine results or distribute further malicious content. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent beyond the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://e-hookahusa.com/uploads/1/3/0/4/130435785/tidakibup_sirivuzuwulenod_kituwamigori_xuxemezozexijon.pdf
    • http://metallichaberdashery.com/uploads/1/3/0/3/130313641/7766647.pdf
    • http://kking96869.com/uploads/1/3/0/5/130588845/riwikoxesifetogula.pdf
    • http://thesegirlslie.com/uploads/1/3/0/7/130739084/mugomaladivi.pdf
    • http://arcadesalvacioncarpinteria.com/uploads/1/3/0/2/130271154/229081.pdf
    • http://staceysdeliclt.com/uploads/1/3/0/4/130436213/f7a041d5.pdf
    • http://attictudeinc.com/uploads/1/3/0/2/130271076/jitenoziguw_pimabawana_fijenuniler_kibetinitubul.pdf
    • http://lovefail.net/uploads/1/3/0/8/130874679/xazarivalo.pdf
    • http://autodiscover.middlebranchmediation.com/uploads/1/3/0/5/130588328/0d0f6d64a40cf.pdf
    • http://omegalul.pw/uploads/1/3/0/7/130738719/cd5d14b670.pdf
    • http://bloggingwithbray.com/uploads/1/3/0/2/130288334/17768e7464be5f5.pdf
    • http://bigfootpipelinemarketing.com/uploads/1/3/0/6/130639658/laredapeb-lusipotumez-xudowut-gisana.pdf
    • http://healthierhormones.com/uploads/1/3/0/5/130589228/kuxoridogefanuvuziba.pdf
    • http://hostmaster.meshtheatre.com/uploads/1/3/0/9/130969750/4704515.pdf
    • http://artfullyinspiredcoaching.com/uploads/1/3/0/6/130605118/aae54899b56cac2.pdf
    • http://lyle-sightings.com/uploads/1/3/0/5/130546977/22ec2e3704cae.pdf
    • http://www.ianosventures.com/uploads/1/3/0/5/130588542/xosiva_bogazi.pdf
    • http://engl2210project21oct2019.com/uploads/1/3/0/7/130739332/6314759.pdf
    • http://www.ninhell.com/uploads/1/3/0/6/130604940/gimikogagigexusodim.pdf
    • http://5pointauto.com/uploads/1/3/0/3/130323097/130323097.html#email+for+not+accepting+offer+letter

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f7c.bin
92d94f160556eeb1fa8f4b1dc1bd8d8634bfbec553324696bf0310320f2e8c18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F7C 8664 bytes

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