Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f815d47c30198e9…

MALICIOUS

PDF

44.3 KB Authoring application: pstoedit
MD5: 6b4d5c6c56691b2514be6f836fbc4bae SHA-1: dba9152b99734a73c5396f3e329bf8e77e501d57 SHA-256: 3f815d47c30198e97bffe803cd1b562848fea5dec3f0a5ba1955cd3f24ca1d42
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a phishing lure, specifically by presenting itself as a document containing 'Good academic cv examples' while embedding a large number of external links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing intent. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external PDF links, with muleartist.com being a dominant host, suggesting a link farm or redirection mechanism to distribute malicious content.

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://muleartist.com/uploads/1/3/0/6/130620456/nujigamo-dipemurer-vaxuge.pdf
    • http://patriciabondrn.com/uploads/1/3/0/7/130740550/vatotejikolu_nexigos_tupavabe_ligemoveb.pdf
    • http://societehistoriquenipissingouest.weebly.com/uploads/1/3/0/2/130272231/2981374.pdf
    • http://movingbackdrops.com/uploads/1/3/0/5/130589064/mezepobamuk.pdf
    • http://595corporateparkofcommerce.com/uploads/1/3/0/7/130738727/8952553.pdf
    • http://hodgy.me/uploads/1/3/0/3/130313067/ketunu.pdf
    • http://juliejesternewman.com/uploads/1/3/0/6/130639549/130639549.html#good+academic+cv+examples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001184.bin
ac1a203a478e42640e14358190be311798bb54e2dddca07a856051c956a094dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1184 8988 bytes

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