Malicious PDF — malware analysis report

Static analysis result for SHA-256 5630f361faf24a6d…

MALICIOUS

PDF

36.1 KB Authoring application: OpenOffice Draw
MD5: dcd15666fb53fa2c3c6be7beeda8433f SHA-1: 1a6b86e67c2b1d79bbe89e727df7917af1e14254 SHA-256: 5630f361faf24a6d849e5ce1ddde649ad171df59ef1f59d4e4788d4b40f88968
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body text is heavily corrupted, but the presence of URLs suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://soloptometry.com/uploads/1/3/0/2/130271177/2479183.pdf
    • http://tallahasseewmc.com/uploads/1/3/0/6/130604681/c8208b07ddaeca.pdf
    • http://re-rigged.com/uploads/1/3/0/5/130590577/6d5dd117.pdf
    • https://wesekugu.weebly.com/uploads/1/3/0/5/130540699/a22c374.pdf
    • http://seju.decenturion.wiki/uploads/2020/01/28/27703df9.pdf
    • http://mefuvon.1film1hikaye.com/uploads/2020/01/28/1219715.pdf
    • http://thenothingman.com/uploads/1/3/0/2/130271117/9231a971a1e06c0.pdf
    • http://amycashproperties.com/uploads/1/3/0/2/130291702/fajoregut.pdf
    • http://prescottcounseling.org/uploads/1/3/0/5/130547846/77480311e7efd.pdf
    • http://folot.motivationluxury.com/uploads/2020/01/27/nagaruwem.pdf
    • https://xaxutiwixofakul.weebly.com/uploads/1/3/0/3/130313379/b041edfb54e270.pdf
    • http://lovelightlifecoaching.com/uploads/1/3/0/3/130379352/duwipolebevojip.pdf
    • http://mobilemechanicmemphistx.com/uploads/1/3/0/5/130588731/9075942.pdf
    • http://drvnmoto.com/uploads/1/3/0/4/130476456/xalotepivenimoj.pdf
    • http://ktsky1.com/uploads/1/3/0/2/130289613/36d18.pdf
    • http://misstourist.org/uploads/2020/01/28/lajesugitutezumixul.pdf
    • http://portal.createweb24.com/uploads/1/3/0/2/130291556/130291556.html#sad+dolls+pics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001426.bin
3b317169567aacc08c92498016160c426558cd0870c045fc33fbbf8f485b00db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1426 8192 bytes

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