Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3291b17e658b05…

MALICIOUS

PDF

53.1 KB Authoring application: Mobipocket Creator
MD5: 3e43ff17d35df701f59737fe18f200f9 SHA-1: 261fff0249967a7fc2f55cbbacd3701b878bd30e SHA-256: 3e3291b17e658b05b40aa0bf2082b83957188f3a4acb28a752f254a06865bafc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://www.wrapswithatwist.com/uploads/1/3/0/6/130620936/13ddca.pdf
    • http://feedtheknead.com/uploads/1/3/0/2/130288462/tovunanoji_defadosese_rumif_rotujuzonegil.pdf
    • http://ns1.rentschlerchemicals.com/uploads/1/3/0/3/130313613/feropirowetibaw.pdf
    • http://newmexicofashioninfo.com/uploads/1/3/0/6/130604465/wuvogozobofo.pdf
    • http://www.anytownchamber.com/uploads/1/3/0/5/130589401/408f7dd.pdf
    • http://babystepstosuccessfcc.com/uploads/1/3/0/7/130739478/9297736.pdf
    • http://buygoodpot.com/uploads/1/3/1/0/131070588/9810205.pdf
    • http://www.letskeepittogether.org/uploads/1/3/0/5/130545480/9704151.pdf
    • http://beholdtheroots.com/uploads/1/3/0/8/130874235/vaxibovirivoz_zuxomiba_gerejixugimopu_sofod.pdf
    • http://surfsideplayhouse.org/uploads/1/3/0/2/130270855/pekimijoragax.pdf
    • http://jesuspinata.com/uploads/1/3/0/8/130815726/3828728.pdf
    • http://mta-sts.forgeaheaddesigns.com/uploads/1/3/0/9/130969658/zemipupak_gusin.pdf
    • http://www.theovercomersblueprint.com/uploads/1/3/0/6/130639272/130639272.html#scope+creep+in+software+project+management

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010c6.bin
303aa35430bec4f80e9bee52240fa81bd10f10e38a4e363ddac1d073061af564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6 8972 bytes

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