Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04ee489944a308d…

MALICIOUS

PDF

29.2 KB Authoring application: Scribus
MD5: cdc37ad53da2325877d8df40dc6bd367 SHA-1: e45254e996d890f99c41ab4634ae926309a29f8a SHA-256: d04ee489944a308dd11cf7b4218c7a843f04fe1e687cde53c2d85fdda6107092
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains a large number of embedded URLs, all pointing to PDF files on various domains. This suggests a link farm or a phishing campaign designed to redirect users to malicious content hosted on these external sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://server-04.gaskeun.com/uploads/1/3/0/5/130551461/bizesoxinek_daxome_gipobarane.pdf
    • http://saferescuefordogs.com/uploads/1/3/0/3/130323285/dolitowijig.pdf
    • http://propriuslearning.org/uploads/1/3/0/7/130776790/5842259.pdf
    • http://ooredoopalestine.net/uploads/1/3/0/3/130313066/pikowukeres.pdf
    • http://somemecosmetics.com/uploads/1/3/0/4/130436271/2909706.pdf
    • http://www.emmahamiltonphotography.co.uk/uploads/1/3/0/5/130542991/62a654d28eed83.pdf
    • http://theeagerentrepreneur.com/uploads/1/3/0/7/130738854/parowi_resosomupojif.pdf
    • http://opmetoc.com/uploads/1/3/0/4/130476516/9377907.pdf
    • http://motorshare.org/uploads/1/3/0/6/130639805/173114.pdf
    • http://www.thechurchupc.co.uk/uploads/1/3/0/5/130543156/xodumofetakeme-vivulor-sigovuj-pitarog.pdf
    • http://webdisk.kwik-fix.co.uk/uploads/1/3/0/5/130545194/jilaronag_regiwu.pdf
    • http://www.bardosdiamondsports.com/uploads/1/3/0/4/130478868/130478868.html#find+gcd+of+array+in+c

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a80.bin
3f6c54edfa06ea31e4644d1b1dbb232c89848812bf2c7c3848f6619896183ee1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A80 7880 bytes

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