Malicious PDF — malware analysis report

Static analysis result for SHA-256 390ed7f061a9b18c…

MALICIOUS

PDF

51.4 KB Authoring application: LibreOffice
MD5: 1d180d26202fd95a38d74213b834815a SHA-1: 64a5b128dc8f4f4c036ef6bfadf4455c2f76a998 SHA-256: 390ed7f061a9b18c0f6eea1b6de1826e62c3cd703ef6558760e4a6ec594d52b3
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, for malicious content. The critical PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a phishing or SEO manipulation tactic. The embedded URLs likely lead to further malicious content or phishing pages.

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://slpwaboard.org/uploads/1/3/0/5/130539109/tuvirukasi.pdf
    • http://smartrecovery.pro/uploads/2020/01/28/3211757.pdf
    • http://alabamafanaticon.com/uploads/1/3/0/5/130588960/8618330.pdf
    • http://brandirmunoz.com/uploads/1/3/0/6/130604562/2372595.pdf
    • http://angeliquedeclercq.be/uploads/1/3/0/3/130324350/zigekim.pdf
    • http://northernillinoispainting.com/uploads/1/3/0/4/130488410/sivovapaber_vujuvisavitu_lilufefe_bugoxov.pdf
    • http://northcountyhumanresources.com/uploads/1/3/0/4/130483737/xujapofiwogo.pdf
    • http://pupid.wrldsex.icu/uploads/2020/01/28/3126936.pdf
    • http://mocommunitytrees.com/uploads/1/3/0/6/130621755/9637853.pdf
    • http://urbancampusresources.com/uploads/1/3/0/6/130621682/boluzefasumotepepo.pdf
    • http://myovisioninfo.com/uploads/1/3/0/4/130488243/fejilaf.pdf
    • http://lornahood.com/uploads/1/3/0/5/130551303/6606967.pdf
    • http://crimsonshadowpack.com/uploads/1/3/0/6/130639558/pupodeve.pdf
    • http://badbear.ca/uploads/1/3/0/4/130435737/f8a856a1c0b.pdf
    • http://thesingbabysingshow.com/uploads/1/3/0/4/130494743/130494743.html#when+does+the+new+iphone+come+out

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013b7.bin
b9d895ad85601e50fb31933055a6b276ea75a27dddb439ade34511a943fd2906		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B7 8528 bytes
font_01_sfnt_off00007a04.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A04 16036 bytes
font_02_sfnt_off00008e1b.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1B 2600 bytes

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