Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b0b004ee9da55d0…

MALICIOUS

PDF

38.6 KB Authoring application: OpenOffice.org
MD5: 2ef61456fa35582aeac6be68e4fbb2fe SHA-1: ddb20a5949e5e6e4ec496c74cf7c8dd06d1a7b34 SHA-256: 9b0b004ee9da55d01898acd21a10794c470983a423cc6b9c6b50e04a8168297e
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or redirection scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly suggest a malicious intent, likely related to phishing or traffic manipulation. No scripts were extracted from this sample, so the primary attack vector appears to be the document's structure and embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://slaughtersclass.com/uploads/1/3/0/3/130379386/a0d2b7a1d.pdf
    • http://nevernecovington.studio/uploads/1/3/0/4/130476616/7893b160735.pdf
    • http://1169certified.org/uploads/1/3/0/4/130477064/1009781.pdf
    • http://cannononlinemarketing.com/uploads/1/3/0/4/130476327/rimalufun.pdf
    • http://myowild.net/uploads/1/3/0/7/130739129/jonad.pdf
    • http://zixatovav.finresult.com/uploads/2020/01/28/wasupiwo.pdf
    • http://almultiservices.ca/uploads/1/3/0/2/130289430/7302479.pdf
    • http://orion.mk/uploads/1/3/0/5/130540010/bigumo.pdf
    • http://ibwaa.org/uploads/1/3/0/4/130476709/2216234.pdf
    • http://westendbarbershop.com/uploads/1/3/0/6/130620679/rifebalutakajaseso.pdf
    • http://moheal-moringa.com/uploads/1/3/0/7/130775164/lovomemi.pdf
    • http://mo-resin.com/uploads/1/3/0/6/130605179/5276062.pdf
    • http://tcsonline.net/uploads/1/3/0/6/130639521/130639521.html#introduce+yourself+esl+worksheet+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012a0.bin
d17a8a3bb197d0cd332ac43ff41262f691f9285f300a9204cdb0f4b9fd9f271a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A0 8120 bytes

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