Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d41601ca19505d6…

MALICIOUS

PDF

76.1 KB Authoring application: OpenOffice.org
MD5: 8a0144388c59cf81311bc4ab322ae0c1 SHA-1: 25c06c271c2483b33b1151ad0795d1887f97105b SHA-256: 4d41601ca19505d6c12e3157f8f30cbb80eec978297722809bf4216955544880
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or redirecting users to malicious content. 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://siobhanartandecology.com/uploads/1/3/0/7/130738780/0dcb8c566ca3a.pdf
    • http://mta-sts.mail.senekal.biz/uploads/1/3/0/2/130287495/netakusujin.pdf
    • http://thenewworldcitizen.com/uploads/1/3/0/5/130590477/cb03d8d6.pdf
    • http://www.beautyinthejourney.net/uploads/1/3/0/6/130604650/jikazufubataj.pdf
    • http://augustapickleball.org/uploads/1/3/0/6/130620782/budigo.pdf
    • http://soloptometry.com/uploads/1/3/0/3/130323271/lidotivejeb.pdf
    • http://joinocms.org/uploads/1/3/0/7/130740510/dizimowuli_lirukalos_titizib.pdf
    • http://getfreepix.com/uploads/1/3/0/5/130539944/7f071.pdf
    • http://www.kimbaneconsulting.com/uploads/1/3/0/4/130476065/ribuzagogun-vorozo.pdf
    • http://glencovemobilehomepark.com/uploads/1/3/0/3/130312952/gomuvudifujotob.pdf
    • http://mta-sts.mail.jacquelineclewis.com/uploads/1/3/0/6/130605390/130605390.html#spherical+to+rectangular+coordinates+converter

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a264.bin
c55d8639d3e4d0fa1e8b355a0030afe971bf74f41d77a047c012c0ec0b72c167		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA264 16596 bytes
font_01_sfnt_off0000b92c.bin
65e78dc4cfc4218c998e8653d27acff130a702c171cc0d6075e6acf9abc80138		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB92C 4216 bytes
font_02_sfnt_off0000cb2f.bin
9ded67fb7ce1d297cd31cc80755396e2421337b0cdfe8e91057ddd388669b08d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB2F 10480 bytes

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