Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f3b46a85cd9720…

MALICIOUS

PDF

34.5 KB Authoring application: ImageMagick
MD5: 9d00b2283e0a128ae5514359c571a184 SHA-1: e500587080208e891b1ed523a510050953165af7 SHA-256: 98f3b46a85cd9720691fd8fd01cf9bfc2da656607f4bf77a50ab4fb98fb95481
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall-7605656-0, and a machine learning classifier also flagged it with high confidence. The embedded document body text is heavily corrupted and does not provide further context on the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ottawaalleganhttf.org/uploads/1/3/0/4/130483200/dujonibebef-lasipopiwedi.pdf
    • http://www.robmacready.com/uploads/1/3/0/6/130604770/kapevozuj.pdf
    • http://infoapartamento.net/uploads/1/3/0/5/130550925/nufawom-majiwerax-nojawosasino-mawaposas.pdf
    • http://koiinteriors.net/uploads/1/3/0/6/130620584/1470379.pdf
    • http://michelejoyjewelry.com/uploads/1/3/0/7/130738939/sesunuligeren.pdf
    • http://www.riseupcounselingandcoaching.com/uploads/1/3/0/6/130621831/kufovorazimufob.pdf
    • http://azautogalleryllc.com/uploads/1/3/0/6/130621141/5671039.pdf
    • http://christianmchoi.com/uploads/1/3/0/4/130494059/2337855.pdf
    • http://christinasbridals.com/uploads/1/3/0/6/130621785/641d97d4c.pdf
    • http://refuelledbybbfcafe.com/uploads/1/3/0/7/130739142/mikenukasinuf.pdf
    • http://nuevalinea.es/uploads/1/3/0/4/130488396/pupikigad.pdf
    • http://villamklima.com/uploads/1/3/0/7/130774994/noxudiwa_nukereveju_muwoboziporu.pdf
    • http://shubhjai.com/uploads/1/3/0/2/130289736/dccb09.pdf
    • http://beleeflaos.be/uploads/1/3/0/2/130291373/fojumisenewaja.pdf
    • http://healthyskinformulacream.com/uploads/1/3/0/5/130589299/4e1e613.pdf
    • http://mrswatsonsroom.com/uploads/1/3/0/2/130272364/rujefogo.pdf
    • http://branchettastreasures.com/uploads/1/3/0/3/130312968/87ae4.pdf
    • http://webmail.digcitinstitute.com/uploads/1/3/0/6/130604326/130604326.html#what+is+the+main+difference+between+adsorption+and+absorption
    • http://beleeflaos.be/uploa

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b87.bin
c95806833a57f0da438192d66f44ec6d30bd0fd5187998901f8241f33564c626		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B87 7396 bytes

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