Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84f98a37abd363b…

MALICIOUS

PDF

28.1 KB Authoring application: PDF Studio
MD5: 4d8dad45f75d032f20574a3dbfcc7dee SHA-1: 361fc0ada2ae0d5e97f01a57c12da7c8bcfe22e4 SHA-256: c84f98a37abd363b927b8b2ea37831fc07a7a61643fd8aa30cc581696bb8d825
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This technique is often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

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://caylahwestphotography.com/uploads/1/3/0/6/130604562/3208831.pdf
    • http://wakeforestfarmersmarket.org/uploads/1/3/0/6/130604040/dupexevotukebulefo.pdf
    • http://pensionsonline.info/uploads/1/3/0/5/130544191/aff149c8.pdf
    • http://mypricelesspetals.com/uploads/1/3/0/6/130621719/3ccd47a7.pdf
    • http://monikagodsmark.com/uploads/1/3/0/5/130551463/fonakojali-rutiradi-wegamere-vaxalezako.pdf
    • http://ouachitabehavioralhealth.net/uploads/1/3/0/5/130588594/rebamuzode.pdf
    • http://webmail.cornishswimacademy.com/uploads/1/3/0/6/130639123/d664a79352ed6.pdf
    • http://der-atemraum.com/uploads/1/3/0/4/130476389/1fc6f34.pdf
    • http://zado.online/uploads/1/3/0/7/130739654/peponiv.pdf
    • http://amd11z.com/uploads/1/3/0/4/130476778/9673631d3cd.pdf
    • http://mismedicos.net/uploads/1/3/0/4/130435881/xotuliw.pdf
    • http://adsl-63-204-18-2.benefitplans.org/uploads/1/3/0/2/130271063/130271063.html#approaches+and+methods+in+language+teaching+3rd+edition+vk

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001918.bin
cc8380312838184fda73a9448f2afbebd97d51ce08cd99e9f7ab00431ba20030		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1918 6880 bytes

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