Malicious PDF — malware analysis report

Static analysis result for SHA-256 7524265c904741b1…

MALICIOUS

PDF

62.3 KB Authoring application: OpenOffice Draw
MD5: 721d93781d8f546526820487f6e14e36 SHA-1: d5753397a97b6ad08fc0596d317da4f9d565774a SHA-256: 7524265c904741b11cd50023492f70343c9195a745e01795264d1959f44a710b
152 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics, including ClamAV and an ML classifier, for malicious content. It contains a large number of embedded URLs, indicative of a link farm designed to redirect users to potentially malicious sites. While no scripts were explicitly extracted, the presence of numerous external links suggests an attempt to lure users to phishing or malware-hosting 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://drybonespgh.com/uploads/1/3/0/4/130490218/4158578.pdf
    • http://gardensoft.space/uploads/1/3/0/6/130605420/1443679.pdf
    • http://ozhiking.com/uploads/1/3/0/2/130274315/zamidapodapal_topadisijalu.pdf
    • http://joshwae.shop/uploads/1/3/0/5/130541924/f7de8.pdf
    • http://katiescakeco.com/uploads/1/3/0/5/130590613/770a32bc0.pdf
    • http://dongoad.com/uploads/1/3/0/7/130776401/setorojelizimuk-janusobu-minijameto-nusabodafur.pdf
    • http://autodiscover.luxor-bg.com/uploads/1/3/0/7/130776699/df7f1a2c132.pdf
    • http://babywhoopsie.com/uploads/1/3/0/8/130874192/zilimuvota-xawix-lavitosale-vebesopaj.pdf
    • http://iloveharvest.com/uploads/1/3/0/5/130543210/kuzuvaxibasobazagida.pdf
    • http://tronotrond.com/uploads/1/3/0/6/130603822/1923850.pdf
    • http://goodkarmabaskets.com/uploads/1/3/0/7/130776674/5791923.pdf
    • http://p8w9b6.salon225.com/uploads/1/3/0/2/130270905/130270905.html#restrictive+relative+clause
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000135d.bin
3bcdfdc8460ecc361d853950f3242a2b0367eddd1a8716b6420bf8492647cafb
pdf-font-stream PDF embedded font (sfnt) at offset 0x135D 9380 bytes
font_01_sfnt_off0000ae80.bin
298f87a37b282755b17879ef28bd8008b5d5927fa8ce0db4577aba4a05cf2386
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE80 16152 bytes