Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e01a92f08787a89…

MALICIOUS

PDF

40.6 KB Authoring application: LibreOffice Draw
MD5: ed7623636b9d38c03e2295d4c88c5fb5 SHA-1: c4fc912526df99b5ad7b7a333e3af7031ea47f66 SHA-256: 1e01a92f08787a8946d1521dae2dc9367a365a0f08b177f3703712a56feed304
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also flag this file as malicious. The primary purpose appears to be directing users to a vast network of linked PDF documents, likely for phishing or to host further malicious content.

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://pmcpaintingscom.com/uploads/1/3/0/7/130776325/a6b0230be6.pdf
    • http://physiqueshows.com/uploads/1/3/0/5/130543207/4171272.pdf
    • http://un-guilty.com/uploads/1/3/0/4/130476062/5846535.pdf
    • http://chefsearchinternational.com/uploads/1/3/0/8/130874422/37ed58418ecc6f6.pdf
    • http://desatascoscornella.net/uploads/1/3/0/7/130739873/6bcb5.pdf
    • http://mayfairprinting.com/uploads/1/3/0/3/130324137/3e1d43eef06.pdf
    • http://mapletreemw.com/uploads/1/3/0/6/130639082/da05eca52144d.pdf
    • http://youreventdecorator.com/uploads/1/3/0/5/130544078/biwobe.pdf
    • http://raremark.net/uploads/1/3/0/6/130621741/6d8fa8d08.pdf
    • http://drmegangomez.com/uploads/1/3/0/6/130622023/bimatarogofegu.pdf
    • http://susiestreats.com/uploads/1/3/0/4/130477048/0128ba57c685.pdf
    • http://nfynia.com/uploads/1/3/0/6/130604667/4831189.pdf
    • http://sos-1.com/uploads/1/3/0/6/130604771/nazoj-zifamu-viwabomidaruka.pdf
    • http://bestgeekdeals.com/uploads/1/3/0/2/130287311/mepasagugujagif_juriduruw_nuwaped.pdf
    • http://andymulligan.com/uploads/1/3/0/4/130477009/gopuzujuwimasuxudam.pdf
    • http://middleagedpinay.com/uploads/1/3/0/4/130488398/6753997.pdf
    • http://rudywalkerofficial.com/uploads/1/3/0/6/130621193/jifeno.pdf
    • http://deskhelper.net/uploads/1/3/0/2/130272080/luxutisovop.pdf
    • http://8n7.brdge.org/uploads/1/3/0/2/130289686/130289686.html#ielts+listening+test+with+headphones+in+toronto
    • http://rudywalkerofficial.com/uploads/1/3/0/6/130621193

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d9f.bin
acb7a233c542501c6e942bf17d04165ca648fbb7521aacb90f94291b25c792c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9F 3744 bytes
font_01_sfnt_off00003ed5.bin
b5052100a4c5a2dc06564049078daaddcdf4731838d29f0a3dd75229dbd49442		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3ED5 8708 bytes

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