Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbba2742308e14b…

MALICIOUS

PDF

34.9 KB Authoring application: Scribus
MD5: 3dac6069bde8d4a0cf570ad6fd77d537 SHA-1: 23b262184353d7da950b6269f83f5d9094958263 SHA-256: 4fbba2742308e14bc3d54b9d4251da4428aa0ef982af68268a949ee274b25282
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific execution chains.

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://talleylakehouse.com/uploads/1/3/0/4/130483863/movit.pdf
    • http://declareservices.com/uploads/1/3/0/6/130639105/luroladowid.pdf
    • http://islandbotanics.com/uploads/1/3/0/8/130874451/lobitisasugiva-tumonir-razojuko-lusepuxupetur.pdf
    • http://stejournal.com/uploads/1/3/0/6/130640088/migiruxubakonatuja.pdf
    • http://kateyanne.com/uploads/1/3/0/4/130476740/9901592.pdf
    • http://carolinetaylor.com.au/uploads/1/3/0/3/130323632/7562625.pdf
    • http://reboundat.com/uploads/1/3/0/4/130476024/130476024.html#qlikview+activex+component+can%27t+create+object+%27powerpoint.application%27

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001122.bin
cb10677a42bada3438f2ce42a8ba6f4e755f2a41434a43e2bd09db597ec694c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1122 8044 bytes

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