Malicious PDF — malware analysis report

Static analysis result for SHA-256 b90c7a698a8e6218…

MALICIOUS

PDF

39.0 KB Authoring application: Serif PagePlus
MD5: 3ec28c06c9cf794b9982ed03c472a3cb SHA-1: fa1ef082311948b38c36b240cbeb490872f05c8f SHA-256: b90c7a698a8e6218570a02626adcda7c8160f54ca6581726ef86a81899babcb9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. The embedded URLs are likely used to redirect users to malicious content or phishing pages.

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://2210enterprisedrive.com/uploads/1/3/0/4/130488153/rodibajijapifovofib.pdf
    • http://ooredoogroup.net/uploads/1/3/0/4/130476821/sibinujeg-mexitibasana.pdf
    • http://carminarevert.xyz/uploads/1/3/0/4/130435518/9308838.pdf
    • http://lead2rose.com/uploads/2020/01/28/513441.pdf
    • http://koasportsmedia.com/uploads/1/3/0/2/130289375/3156350.pdf
    • http://naturalbalancetherapies.org/uploads/1/3/0/3/130313194/cc519d9fb2c.pdf
    • http://wriggretreats.com/uploads/1/3/0/4/130478819/kadogato_sugajinek_fuvokoratuge_nesogapixa.pdf
    • http://everydayolympian.com/uploads/1/3/0/6/130620631/83050.pdf
    • http://drpatty.net/uploads/1/3/0/4/130483869/130483869.html#blood+type+o+food+recipes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011dc.bin
63fe0ee04282bac3491d83422d603336b9ec4d63122c617009b5612baaaf0234		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DC 8220 bytes

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