Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac2ba6de99388bf…

MALICIOUS

PDF

42.8 KB Authoring application: Nitro PDF
MD5: 81b463fd07598a13684d2ac882cc8bde SHA-1: beb227fac0c41339ad8892351d0dddb7129ab183 SHA-256: 8ac2ba6de99388bfd7275e9e7c875e5ff467884f11ce14d47db5dbb42a96d968
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The embedded URLs are likely part of a link farm designed to drive traffic to malicious sites.

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://aljazeeraglobal.com/uploads/1/3/0/2/130271028/jogule.pdf
    • http://goodfoodfilm.com/uploads/1/3/0/7/130739535/10b1e92.pdf
    • http://melatonindosierungen.com/uploads/1/3/0/6/130639157/budujedijutajex.pdf
    • http://derrelsofdothan.com/uploads/1/3/0/5/130589121/8e46bd5882b.pdf
    • http://alevelapps.com/uploads/1/3/0/4/130489969/besuwopejisoto.pdf
    • http://vmiengineering.com/uploads/1/3/0/6/130639379/fukojuvik_gebos_xupanomef_vezirufa.pdf
    • http://2blether.com/uploads/1/3/0/7/130775084/9880099.pdf
    • http://andersonandhartlaw.com/uploads/1/3/0/5/130551309/3360322.pdf
    • http://cheryllanders.com/uploads/1/3/0/5/130542859/lakub-nogilenixodu.pdf
    • http://usafachapters.org/uploads/1/3/0/7/130740598/baliwefixas.pdf
    • http://mikeajames.com/uploads/1/3/0/3/130324136/4659101.pdf
    • http://glutenfreefoodie.blog/uploads/1/3/0/2/130271161/9003666.pdf
    • http://yolodestinationparties.com/uploads/1/3/0/6/130620267/7842181.pdf
    • http://foothillsbiblefellowship.com/uploads/1/3/0/6/130639861/130639861.html#partially+torn+achilles+recovery+time

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d09.bin
f519fe859d7e51537c77dd094009c291c35eef05dc2bdcc3c5b8cd9b573bf63e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D09 8712 bytes

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