Malicious PDF — malware analysis report

Static analysis result for SHA-256 b30b8f5f1fd672f4…

MALICIOUS

PDF

38.0 KB Authoring application: PDF Studio
MD5: 712b27ad38482505f80968993e4c6ec9 SHA-1: 93ce5d31ceb0316e4e6c3ec1504e2d70f225841c SHA-256: b30b8f5f1fd672f4c96fa421f56f20f1cbdadaea781bbc3e289d07739c183289
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. The document body text is heavily corrupted and does not provide further clues.

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://firstchoicecleaningservicetx.com/uploads/1/3/0/7/130738679/fd27ee.pdf
    • http://neilestrick.com/uploads/1/3/0/6/130622032/waginekozod_posane_tirazosered_xolef.pdf
    • http://www.kitavisualdesigns.com/uploads/1/3/0/2/130287246/gadewajokad.pdf
    • http://friendsfriendsfriends.com/uploads/1/3/0/4/130488243/cbd9baa.pdf
    • http://ragnarlegend.com/uploads/1/3/0/3/130379121/sepoxize.pdf
    • http://cantonfair2u.com/uploads/1/3/0/6/130639679/tefisi-towez-gotux.pdf
    • http://summitcapitalco.com/uploads/1/3/0/5/130550777/pesurajogute.pdf
    • http://www.agenkastam.com/uploads/1/3/0/8/130873846/f2a881ec625ef.pdf
    • http://damiangorman.com/uploads/1/3/0/4/130435843/66c5592ad664839.pdf
    • http://shopdiveinmagazine.com/uploads/1/3/0/8/130814706/fizosafademovifid.pdf
    • http://mrssheltonsclassroomeghs.com/uploads/1/3/0/2/130287886/4042717.pdf
    • http://www.efficientintent.com/uploads/1/3/0/7/130740097/3954755.pdf
    • http://kathleen-cortez.pleasingfood.com/uploads/1/3/0/7/130739718/130739718.html#african+flower+crochet+afghan+pattern
    • http://ragnarlegend.com/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c2b.bin
6d957c64ad971f314fd8d27fbc11ccd2b8fc2d126c09bce49374b3b608cd8ba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C2B 8028 bytes

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