Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db99e423ea8e7cf…

MALICIOUS

PDF

31.1 KB Authoring application: OpenOffice.org
MD5: d860e13a5300c8eaa49906f455fd3c56 SHA-1: 0f8c989087f889e875b3f0062a1d01fa26793517 SHA-256: 0db99e423ea8e7cf751ad5b1122bc486caa22e3c3ec69880d2bfc6e099853d99
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. The embedded URLs are the primary indicators of compromise, likely leading to further malicious content or phishing pages.

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://realmorrowpost.com/uploads/1/3/0/6/130639622/8808606.pdf
    • http://moralehemp.com/uploads/1/3/0/8/130813804/vibafupujune.pdf
    • http://themagicalcryptofriendsshow.com/uploads/1/3/0/2/130272270/5444165.pdf
    • http://davidrocks.org/uploads/1/3/0/4/130436343/ketitepomofen.pdf
    • http://bigfootpipeline.com/uploads/1/3/0/3/130313130/bogusuva.pdf
    • http://cloth-ng.com/uploads/1/3/0/4/130483923/fuliviwejifixom.pdf
    • http://petportraitsbyjanedolan.com/uploads/1/3/0/8/130814225/tajemeji.pdf
    • http://canyonsohana.com/uploads/1/3/0/4/130476814/2428918.pdf
    • http://yardbaseballsoftball.com/uploads/1/3/0/6/130621942/nefemonizetup.pdf
    • http://wildfantasycat.com/uploads/1/3/0/4/130483697/xobobavexise_xasojemugu_buwona.pdf
    • http://derekleishman.com/uploads/1/3/0/5/130588700/zokogip_sogulawe_femolopelaro_timodoze.pdf
    • http://lostpupper.club/uploads/1/3/0/3/130323556/wugizoxasudovinapobo.pdf
    • http://newmarketcrossfit.com/uploads/1/3/0/8/130813453/divomi-konef-komigamo-lugabudobafu.pdf
    • http://fordflexlasvegas.com/uploads/1/3/0/5/130551746/110719.pdf
    • http://nuohotel-zh.devsite-1.com/uploads/1/3/0/6/130621484/130621484.html#how+to+reset+casio+fx991es+calculator

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002027.bin
f619cb6c73296e21c58aeda98e8bfbd23acbce9134305ef061f1decd72d95f89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2027 7544 bytes

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