Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4999c883dbb519f…

MALICIOUS

PDF

31.8 KB Authoring application: OpenOffice.org
MD5: 4f4eb0c9cb708a92cd5c927f5870d005 SHA-1: 0e3998acf3cd390ab85671449743235304fb5129 SHA-256: a4999c883dbb519f802e5897b9231cecb4c0b4be75a2f927bff1bf3111e2f375
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 domains, each hosting a PDF file, suggesting a link farm or a distribution mechanism for further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious nature of this document. 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://erikalally.com/uploads/1/3/0/4/130436389/2523554.pdf
    • http://hostmaster.fishonfriday.be/uploads/1/3/0/9/130969889/namugidopuri_posizugilofaz.pdf
    • http://cccaabbrefs.com/uploads/1/3/0/4/130436282/zoxozifuw.pdf
    • http://plsclex.com/uploads/1/3/0/4/130477131/zubewe.pdf
    • http://gsfx.org/uploads/1/3/0/7/130775536/nevif-lazorowopasudij.pdf
    • http://legatuscultureco.com/uploads/1/3/0/5/130544132/2a627f140f.pdf
    • http://newriver-yoga.com/uploads/1/3/0/7/130738806/rofili_baregaxefog_masivu.pdf
    • http://nadinebrockel.de/uploads/1/3/0/4/130476747/770594945c8.pdf
    • http://splashevents.co.za/uploads/1/3/0/7/130775830/nebetoni.pdf
    • http://www.thecreamteamuk.com/uploads/1/3/0/3/130379098/82a45234c38f.pdf
    • http://beautywayuk.com/uploads/1/3/0/4/130477394/611d0191f4.pdf
    • http://jasonseto.com/uploads/1/3/0/7/130775485/rumetepefapizu-gamufizelozelu-kadufotajekow-zotogaju.pdf
    • http://bayviewblast.com/uploads/1/3/0/4/130488694/6867514.pdf
    • http://myrole.finance/uploads/1/3/0/7/130739747/zogebumimilawosuwex.pdf
    • http://caleb123.com/uploads/1/3/0/7/130739362/11a2146.pdf
    • http://ugomicci.it/uploads/1/3/0/7/130739962/cbc02d47ff2.pdf
    • http://plumbingsantaclarita.net/uploads/1/3/0/6/130640116/rumomevavusilo_dawafem_loverutagat.pdf
    • http://impacsolution.com/uploads/1/3/0/7/130740084/e5268f0f4929.pdf
    • http://excelysis.com/uploads/1/3/0/6/130621495/3046f8c3d7.pdf
    • http://webdisk.jennifermannauthor.com/uploads/1/3/0/5/130551386/130551386.html#amazon+kindle+paperwhite+case+ebay

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001eab.bin
eaf1d5f9876ebcdba5b46a1ae6e179646648c9eba0b8fb8f9beefee707c4f938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EAB 7372 bytes

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