Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa8578c7c520bea7…

MALICIOUS

PDF

36.3 KB Authoring application: OpenOffice.org
MD5: bae8e66e26d48e874d795dcf66650e70 SHA-1: 0d6c8b1d24d439770034980808ab5afc843fb8eb SHA-256: fa8578c7c520bea70b1119870010fa13ea08c5a0fcc9bed2dc2801e01614b9f2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm designed to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the PDF_SEO_LINK_FARM heuristic strongly suggest a phishing or malware distribution campaign. The document body contains text related to watching a movie, likely a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://yessicafandinofiore.com/uploads/1/3/0/4/130483830/pigesimajibibe.pdf
    • http://highpotency.com/uploads/1/3/0/5/130590177/2536058.pdf
    • http://sabyhage.se/uploads/1/3/0/6/130621937/6249515.pdf
    • https://toxabusivux.weebly.com/uploads/1/3/0/2/130271121/82f32b4.pdf
    • http://mh-aero.de/uploads/1/3/0/4/130478566/6365007.pdf
    • http://drpatty.net/uploads/1/3/0/5/130544086/130544086.html#patron+mutlu+son+istiyor+filmi+izle

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000123c.bin
0608c7ab090e3bcc1ab6703c9ccc82c8aa181481cd7395e2a2697bbf93a991ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123C 9152 bytes
font_01_sfnt_off000045ac.bin
b6ee667f81e0c116fa796fd7fb0064e2c158f717dcb4bbd29ba118e50b0e64e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45AC 16460 bytes

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