Malicious PDF — malware analysis report

Static analysis result for SHA-256 447045fd759855b5…

MALICIOUS

PDF

36.5 KB Authoring application: pstoedit
MD5: e632aebbffe5fdf1ed8ffc182031c341 SHA-1: ebb92c67acaa9f8882ce15254cb61a1ed4639100 SHA-256: 447045fd759855b5d184d13bd507124d64dd73b22a60565c86a01d10ac025966
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, characteristic of a link farm designed to direct users to malicious content. The heuristic 'SE_INVOICE_LURE' suggests the document's content is intended to deceive the user into clicking these links, likely for phishing or malware delivery. The ClamAV detection further confirms its malicious nature, identifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. No scripts were extracted from this sample.

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://superiorhomeservicesllc.net/uploads/1/3/0/7/130775632/vajikunewesiwotet.pdf
    • http://ekki.co/uploads/1/3/0/4/130489410/2408218e21a2713.pdf
    • http://www.intostories.fi/uploads/1/3/0/5/130545485/0035a09.pdf
    • http://tkoutdoors.marketingfactorygroup.com/uploads/1/3/0/4/130476270/rozesi.pdf
    • http://www.xolhemetsociety.org/uploads/1/3/0/6/130604764/1505291.pdf
    • http://convodoc.com/uploads/1/3/0/4/130476270/cb1a2af.pdf
    • http://raycoffee.net/uploads/1/3/0/7/130738988/nowosupogatami.pdf
    • http://avcanarias.com/uploads/1/3/0/2/130287867/leruxaxononuri-xupekifujedis-kafede.pdf
    • http://traumasurgeonnt.com/uploads/1/3/0/8/130873955/bowixigejuvi-muzopud-tubelepifopi.pdf
    • http://aplace4me.net/uploads/1/3/0/5/130589125/10569.pdf
    • http://www.spacecreationdesign.com/uploads/1/3/0/2/130287547/130287547.html#converting+income+statement+from+cash+basis+to+accrual+basis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003906.bin
40cb41732e3ebd6a84f51587e8a31a663fc11e1094b5043062bb582c2243d45f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3906 7836 bytes

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