Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d8006b3092f223…

MALICIOUS

PDF

48.2 KB Authoring application: Scribus
MD5: a3b3caeadb31ebce77da97f839eb73ab SHA-1: dce61472115977e529a7931d63d06d0d66495c9c SHA-256: 69d8006b3092f223c768b8d9d1192ae5fbae81638755c77b6943b43e9864d96a
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external PDF files, many of which are algorithmically generated and hosted on suspicious domains. ClamAV detected this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or redirection campaign. The embedded URLs suggest a link farm designed to redirect users to potentially malicious content, likely for further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 https://megunaxizi.weebly.com/uploads/1/3/0/5/130539344/3796744.pdf
    • http://walkrunleap.com/uploads/1/3/0/6/130604732/9362128.pdf
    • http://missionalworship.com/uploads/1/3/0/4/130476344/5655516.pdf
    • http://message6666.com/uploads/1/3/0/6/130621315/6082698.pdf
    • http://cleaningservicesresidentialcommercial.com/uploads/1/3/0/2/130289803/5953690.pdf
    • http://sontimes.org/uploads/1/3/0/5/130539113/pogavufafikev.pdf
    • http://reboundat.com/uploads/1/3/0/4/130476462/130476462.html#accelerometer+sensor+arduino+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001167.bin
35e2418a5d1076c51c4a0e66dc10affcc3e665e55b67791439d4a6c5b18745bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1167 9004 bytes
font_01_sfnt_off0000825e.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x825E 2616 bytes

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