Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3801f70189c2dff…

MALICIOUS

PDF

41.8 KB Authoring application: OpenOffice Draw
MD5: e91569d0290840b7d83509d1fa7520da SHA-1: 09296f78b1a86f59a4ba6065bc59d032d941f6f2 SHA-256: a3801f70189c2dff84293c6d264aad19f40a56ce9bfc0f4c693fa2da68f1bbd7
152 Risk Score

Malware Insights

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

The PDF file was identified as malicious by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection for Pdf.Phishing.TtraffRobotInstall. The document contains a large number of embedded URLs, all pointing to external PDF files hosted on various domains. This suggests a link farm or redirection mechanism designed to lead users to potentially malicious content, likely for phishing or malware distribution. 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://nkbadvisors.com/uploads/1/3/0/6/130603903/bozexebab_parazukuzule_mumesevotog_takiwalud.pdf
    • http://ebrugezgindesign.com/uploads/1/3/0/6/130603756/a3dc661.pdf
    • http://site.diamantinc.ca/uploads/1/3/0/6/130639175/6358563.pdf
    • http://adoptme.info/uploads/1/3/0/3/130324248/ab358bb1.pdf
    • http://elitehockeyleagues.com/uploads/1/3/0/6/130604112/6428695.pdf
    • http://msmaley.com/uploads/1/3/0/6/130605248/dugaboliv-kodukadana.pdf
    • http://quirkydogartwork.com/uploads/1/3/0/2/130289345/2666022.pdf
    • http://nolimitsfitnesswear.com/uploads/1/3/0/7/130739087/woxeno.pdf
    • http://radioevasi.com/uploads/1/3/0/4/130435514/bebidaw-dokenafa-garorebonipi.pdf
    • http://canadianholisticcenter.com/uploads/1/3/0/2/130289688/130289688.html#adverse+media+report

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f1.bin
80fd845e089a1c2caefde580d3ab669f0bec704ff1c5b842c8bcadae0277e5af
pdf-font-stream PDF embedded font (sfnt) at offset 0x11F1 7824 bytes