Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac1cf7635a87e075…

MALICIOUS

PDF

46.0 KB Authoring application: PDFBox
MD5: fec06e282d24f4f906dc7f042b520483 SHA-1: 26ca06283ef3f3446a418c3571f5077bb8860590 SHA-256: ac1cf7635a87e075ecccf4e3f76c1171da91a0b5e0968114067731863ab36142
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. No scripts were extracted from this sample.

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://iamlunlun.com/uploads/1/3/0/6/130604562/dixegemijalunut.pdf
    • http://www.carsonsstorenoank.com/uploads/1/3/0/4/130477755/xabusuzazeren_vefel_finoxirum_tutera.pdf
    • http://www.janephilipsceramicsshop.com/uploads/1/3/0/5/130588240/0091b54571.pdf
    • http://powerstrokeconcepts.com/uploads/1/3/0/2/130291415/torivizelovasiwuzafu.pdf
    • http://1happyskull.com/uploads/1/3/0/7/130776247/zimenumixag.pdf
    • http://bodybeautifulesthetics.com/uploads/1/3/0/6/130621283/cbf26186d34.pdf
    • http://bennyandtheworld.com/uploads/1/3/0/6/130621248/f905c4e4.pdf
    • http://depewconstructionllc.com/uploads/1/3/0/4/130483043/gokewotun.pdf
    • http://ashtangayogacompiegne.com/uploads/1/3/0/2/130291579/4f3f6d268ebc4.pdf
    • http://meeraiyengar.com/uploads/1/3/0/6/130604324/edc53e6eba11f7.pdf
    • http://wheretoeatvegan.co.uk/uploads/1/3/0/5/130539009/5080103.pdf
    • http://newflavorhouseinc.com/uploads/1/3/0/5/130588199/dolumedogu.pdf
    • http://greenwolfverticalfarm.com/uploads/1/3/0/6/130604048/130604048.html#nema+17+stepper+motor+arduino+uno
    • http://powerstrokeconcepts.com/uploads/1/3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a3c.bin
0bd5b1e274a1ae85c379227539b5a993256c3c9be367c8b46082da50cc4e7fdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3C 8788 bytes

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