Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8a95d0611ec9b2f…

MALICIOUS

PDF

50.6 KB Authoring application: Nitro PDF
MD5: 65e7c88b9a852e70514cbfa597a37f87 SHA-1: a65bd3b1774a12a82175f06a3d1bd86a5372f381 SHA-256: b8a95d0611ec9b2f348393084da8f4922402e92fec7a4126678259ee6977b67e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a campaign focused on SEO manipulation or distributing malicious content through a link farm. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of this document.

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://pan-education.com/uploads/1/3/0/6/130604452/3863376.pdf
    • http://diagbox.org/uploads/1/3/0/5/130539726/sumudogu.pdf
    • http://centerforstrategicministry.org/uploads/1/3/0/2/130270906/e31b4a0f836e83.pdf
    • http://totalpackageessentials.com/uploads/1/3/0/6/130640190/6394281.pdf
    • http://ww1.westwaycapital.com/uploads/1/3/0/8/130873828/metumeruki-kibaniromiz-natawapa-dawaxuj.pdf
    • http://food.mackay101.com/uploads/1/3/0/8/130813132/7993182.pdf
    • http://brownfencing.com/uploads/1/3/0/5/130588570/maxixogowadug-linewifalil-rafufip-rabedojexas.pdf
    • http://talesfromsixthgrade.com/uploads/1/3/0/7/130739212/xozuw.pdf
    • http://deblokletter.be/uploads/1/3/0/4/130476921/9044159.pdf
    • http://www.marketprospectorsupport.com/uploads/1/3/0/4/130476804/fumexibenenim-xuxuf.pdf
    • http://disneychristmasparty.com/uploads/1/3/0/4/130483583/9471323.pdf
    • http://www.baradesignsandleasing.com/uploads/1/3/0/4/130436122/fb96a148334.pdf
    • http://vudumedia.net/uploads/1/3/0/3/130313495/jonax.pdf
    • http://robertahiming.com/uploads/1/3/0/2/130291624/5689563.pdf
    • http://mylonglocks.com/uploads/1/3/0/6/130640200/407862.pdf
    • http://mountvistapersians.com/uploads/1/3/0/3/130312993/fepuzo.pdf
    • http://www.walthampreschool.co.uk/uploads/1/3/0/8/130874633/208501.pdf
    • http://www.pupperware.net/uploads/1/3/0/5/130542829/49d267.pdf
    • http://empowered-women.com/uploads/1/3/0/7/130739557/jugiz_vewowu_vowasuzememonu.pdf
    • http://advbiocom.com/uploads/1/3/0/7/130775876/5129825.pdf
    • http://host225.carmichaelnl.com/uploads/1/3/1/0/131070116/131070116.html#ischemic+brain+stroke+treatment

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005108.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5108 16036 bytes
font_01_sfnt_off00006801.bin
d6f6760b9b6e6fced05b5df3a451da62a08a4f7c3e9486e27e4a58c866dadfbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6801 7576 bytes

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