Malicious PDF — malware analysis report

Static analysis result for SHA-256 684ff2669c2052ca…

MALICIOUS

PDF

35.6 KB Authoring application: Mobipocket Creator
MD5: cf636598fe291035f10522b25e6794dc SHA-1: 9504faa82309d7f1dff6f21bf2fada261ed1c2b1 SHA-256: 684ff2669c2052ca66ff56549ff930c6482dd46f43bc25cac41663c4ce50290e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including a critical finding for a mass external PDF link farm and a high ML score. ClamAV identified it as Pdf.Phishing.TtraffRobotInstall, indicating a phishing attempt. The embedded URLs likely lead to further malicious content or phishing pages. No scripts were extracted from this sample.

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://mostafaelbaba.net/uploads/1/3/0/8/130814382/leripuzazanalelukejo.pdf
    • http://www.booking.northshorelimoandcarservice.com/uploads/1/3/0/4/130475881/gesipojevudegaf_punojimofilawa_zarelifiwe_lusapezulifafik.pdf
    • http://alignnowphysicaltherapy.com/uploads/1/3/0/7/130738939/jidikoxo.pdf
    • http://rpmreverse.com/uploads/1/3/0/5/130551641/93ca5e.pdf
    • http://26and2.club/uploads/1/3/0/6/130639571/vulugiwonitor.pdf
    • http://litolympiad.com/uploads/1/3/0/6/130604765/7e3e39b19d3c.pdf
    • http://ninja9x.com/uploads/1/3/0/4/130476597/7292263.pdf
    • http://nodaysoffalthletics.com/uploads/1/3/0/2/130270918/7356259.pdf
    • http://ucdllp.com/uploads/1/3/0/4/130476122/6d48de1b32734.pdf
    • http://www.beavercreekhomevalue.info/uploads/1/3/0/5/130588751/rufapapa.pdf
    • http://yogaphysiosydney.com/uploads/1/3/0/9/130969701/3547318.pdf
    • http://challengeyourlegal.com/uploads/1/3/0/5/130590778/6152237.pdf
    • http://www.peoplexcelnlove.com/uploads/1/3/0/6/130640018/6829731.pdf
    • http://senyumurta.com/uploads/1/3/0/5/130588839/9361453.pdf
    • http://jessica-and-jaso-1.rominastiebenphotography.com/uploads/1/3/0/7/130776878/130776878.html#advantages+of+air+cooled+chillers+over+water+cooled+chillers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032ce.bin
c8fb42d9e899e00f334753934173479cfc1d7e06cf47debd1c83b6d6b5669028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32CE 7308 bytes

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