Malicious PDF — malware analysis report

Static analysis result for SHA-256 26bce562feafcd3f…

MALICIOUS

PDF

46.0 KB Authoring application: Serif PagePlus
MD5: 4dea9aaf51cb91f75a42a340c5e8da00 SHA-1: 1e04acb692ae1c0db1789580a28fa5415abe4dd5 SHA-256: 26bce562feafcd3fc10feb7ffb09b0fce7357adaebb6932abac171a3aa5375a0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample, limiting the ability to determine specific execution chains.

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://phillipphanproperty.com/uploads/1/3/0/4/130483773/332009.pdf
    • http://dhi-nc.com/uploads/1/3/0/4/130488662/2939149.pdf
    • http://arabshortfilmfactory.com/uploads/1/3/0/4/130476114/kalapatemudaraf.pdf
    • http://jodutafi.sixset.pw/uploads/2020/01/28/7851935.pdf
    • http://ecodentals.com/uploads/1/3/0/6/130640090/c015c31.pdf
    • http://bexovax.villaursa-croatia.com/uploads/2020/01/29/fixefipasalixutuzufe.pdf
    • http://klaspinfo.com/uploads/1/3/0/2/130270849/4445107.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/5/130539251/130539251.html#angela+carter+the+werewolf+summary

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001165.bin
21acc2480acacf14338c2f6de7d2822a25196757a22c4d3a7a8d3cc2b743658b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1165 8656 bytes

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