Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d4cb7cad6b43d7…

MALICIOUS

PDF

44.1 KB Authoring application: Serif PagePlus
MD5: b3e9cd8117298372e1b5e11b3812deed SHA-1: d6714a4b1c62b6d016db4d16813fef7f6a20e214 SHA-256: 75d4cb7cad6b43d770f2c3abe5d690ae58a23378da4bad343ba1a411f11dde31
160 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many URLs pointing to other PDF files, indicating a likely distribution or phishing campaign. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent. The presence of embedded URLs and a call-to-action button further supports the conclusion that this document is designed to trick users into downloading malicious content.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://northeastmaterials.com/uploads/1/3/0/4/130488286/pepuvujijebobinonevo.pdf
    • https://fibiwevem.weebly.com/uploads/1/3/0/6/130604561/depofosalevelif.pdf
    • http://wallracercar.info/uploads/2020/01/28/luxut-vamigopozerame-pofawipi.pdf
    • http://bikefishski.com/uploads/1/3/0/6/130605028/bebufakavilat.pdf
    • http://clkfarm.com/uploads/1/3/0/6/130640071/74160cb7814fc.pdf
    • http://uktvspainuk.com/uploads/1/3/0/6/130604338/wakajawixawufuj.pdf
    • http://myinfoviews.com/uploads/1/3/0/6/130604805/dabaec3e.pdf
    • http://noon2moon.com/uploads/1/3/0/4/130476574/muzen.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/5/130550830/130550830.html#ap+panchayat+secretary+previous+papers+download
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001366.bin
b1586f2b2f3370396a8c38cdbda43af44b15fdca6c67ad6b576740d48e66ed04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1366 8004 bytes
font_01_sfnt_off00006620.bin
c6c28444bcd94379862b6cc7f8cfcdbcdaeb026857ccdb099d87626a561054a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6620 16092 bytes

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