Malicious PDF — malware analysis report

Static analysis result for SHA-256 0796566134043253…

MALICIOUS

PDF

44.1 KB Authoring application: OpenOffice.org
MD5: 0ddf7bdf9e5c1d999e4319ac50ee0558 SHA-1: 27e0d59ac1de2832a1c4a9367840803d93a7f7bf SHA-256: 079656613404325311807fac5eff1cded5869274d838b31d1f58d30c84a58783
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a large number of external links, many of which point to other PDF files, indicating a link farm designed to distribute malicious content. The presence of a visual download button lure further supports the phishing attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://uintahonlinek8.com/uploads/1/3/0/2/130287943/loxadaliwumed_wunogu_lesulumolitobom_zanorebebusurij.pdf
    • http://attorneyspacesharing.com/uploads/1/3/0/4/130476351/medizuga.pdf
    • http://1220productions.com/uploads/1/3/0/4/130435914/acf3b7.pdf
    • http://parkscore.net/uploads/1/3/0/4/130483576/4026482.pdf
    • http://theprofesionalgardener.org/uploads/1/3/0/6/130621024/fumekanako_kipetamimuxa_parojili_zabopobisal.pdf
    • http://paintinghopefoundation.com/uploads/1/3/0/3/130379251/914940.pdf
    • http://isladelplacer.com/uploads/1/3/0/6/130603798/8898772.pdf
    • http://bartbenson.com/uploads/1/3/0/5/130589396/kawepuxokuxaxiwakaz.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/5/130547728/130547728.html#apache+tomcat+install+ubuntu+16.04
    • 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_off0000123d.bin
e67a6f933d0fa82d823fbf64f0848606351f2850a41980cbb2a877ef4f8c2b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123D 8256 bytes
font_01_sfnt_off0000656e.bin
f304d5248de4d2d535e11e5a3f00133999c598ccb7ee943f2677ab784214679d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x656E 16208 bytes

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