Malicious PDF — malware analysis report

Static analysis result for SHA-256 929cee985770bbe9…

MALICIOUS

PDF

39.2 KB Authoring application: QPDF
MD5: a47211f12c16a8f542ace38e1598fa69 SHA-1: 09ab41c52544c52d82ebbd0025de45f8d084c34b SHA-256: 929cee985770bbe934faaacebd856251f18df0080f354218f3e15d4cb00bffc7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically phishing. The embedded URLs are likely part of a link farm designed to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bosssales.com/uploads/1/3/0/6/130603945/1eddc36.pdf
    • http://ehkhoo.com/uploads/1/3/0/6/130604693/nezow-wujapi.pdf
    • http://searchandrescueireland.com/uploads/1/3/0/7/130775304/piburagibirumefetoge.pdf
    • http://spanishin20lessons.com/uploads/1/3/0/6/130604767/serimejaj.pdf
    • http://tturbanranch.com/uploads/1/3/0/3/130379928/7600027.pdf
    • http://katrinaplamondon.com/uploads/1/3/0/8/130873715/fefunixuki_kofal.pdf
    • http://redsquarecommercial.com/uploads/1/3/0/4/130436162/5930013.pdf
    • http://gassersphoto.com/uploads/1/3/0/7/130775714/pujonanogukap.pdf
    • http://www.villapresdulac.com/uploads/1/3/0/7/130738943/palaw.pdf
    • http://dqwaynesboro.com/uploads/1/3/0/5/130544494/geliwitali.pdf
    • http://photographersumbrella.com/uploads/1/3/0/5/130551700/801550.pdf
    • http://bellevueboysswive.com/uploads/1/3/0/4/130435943/2569775.pdf
    • http://heyjessalbano.com/uploads/1/3/0/5/130590710/bepol.pdf
    • http://legionsupplements.org/uploads/1/3/0/7/130775870/4557703.pdf
    • http://confecamaras.net/uploads/1/3/0/7/130775256/jaxufemafo_labona.pdf
    • http://www.korenambiental.com/uploads/1/3/0/6/130621788/bf5a15c351255.pdf
    • http://alamance-cba.com/uploads/1/3/0/2/130288875/3986009.pdf
    • http://sipsandtripstravel.voyagerwebsites.com/uploads/1/3/0/5/130550956/130550956.html#if+marginal+cost+is+greater+than+average+total+cost+then+average+total+cost+is+rising
    • http://gassersphoto.com/uploads

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000271c.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x271C 16036 bytes
font_01_sfnt_off00003dff.bin
28617821ac5daffeb62ef7792231e6cde8564d4005ab5eb6e615c3b198894f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3DFF 7340 bytes

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