Malicious PDF — malware analysis report

Static analysis result for SHA-256 04685ab71f0140c2…

MALICIOUS

PDF

46.3 KB Authoring application: Poppler-utils
MD5: b0ade5dc259f74f521b8e62a4034af32 SHA-1: 7df5cf2e5f452267bf4fb74581a6f9b167ce789d SHA-256: 04685ab71f0140c21679731a064a226053c000cea3de45b95c8ab3935f4b5ec0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier. It contains a large number of embedded URLs pointing to PDF files on various domains, indicating a link farm or redirection mechanism. The primary purpose appears to be directing users to external content, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://myinfoviews.com/uploads/1/3/0/6/130604590/6818182.pdf
    • http://alleylitke.com/uploads/1/3/0/4/130436252/006269.pdf
    • http://artofyiannipasamihalis.com/uploads/1/3/0/4/130494636/bajawovu.pdf
    • http://gaxukagabe.psk-es.ru/uploads/2020/01/28/pitibizi-tazapuxug.pdf
    • http://youversusyourself.com/uploads/1/3/0/2/130272415/4e363379c70ab65.pdf
    • http://saint-tims.com/uploads/1/3/0/6/130621226/668163.pdf
    • http://adamrichardsteachingportfolio.com/uploads/1/3/0/2/130289543/tovorolilaz.pdf
    • http://tagdogtraining.com/uploads/1/3/0/5/130544468/eedcc39.pdf
    • https://fujagefamedufuv.weebly.com/uploads/1/3/0/3/130379352/2110171.pdf
    • http://molecularsupplements.com/uploads/1/3/0/4/130489448/fbee604.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/5/130590700/130590700.html#git+commit+amend+date+format

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000130a.bin
b26ee89e892680f8c07fcaaa31e8b3e7fbd034fb9b16bb4b4c993101ccbb56d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130A 10004 bytes

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