Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2eddeaca900177…

MALICIOUS

PDF

43.4 KB Authoring application: PDFedit
MD5: 6bc604551b734926d7093d027bd934cb SHA-1: 702f21cd0e69c185caf50620a3f6af22de38f3a7 SHA-256: df2eddeaca9001772f9a793fe411db58338f0cf1ec3eba09c642170bd1ebb9c9
122 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Heuristics 4

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://www.organicseagarden.com/uploads/1/3/0/6/130604715/1471699.pdf
    • http://www.icsneakers.com/uploads/1/3/0/3/130379803/5c9d6fc6b.pdf
    • http://www.thetitanlawn.com/uploads/1/3/0/5/130550805/bad86fe509c087.pdf
    • http://myezpzpay.com/uploads/1/3/0/7/130775644/6764593.pdf
    • http://hdhairpro.com/uploads/1/3/0/6/130639382/208830.pdf
    • http://kukconsult.net/uploads/1/3/0/2/130272330/botufupasigefena.pdf
    • http://totembliss.com/uploads/1/3/0/5/130545643/zipijemulupujew.pdf
    • http://www.cincyrealty.net/uploads/1/3/0/5/130540504/aefbf70a3.pdf
    • http://cranfordfishstand.com/uploads/1/3/0/4/130483253/luzoloravunemo_zexumaxefi_boxexa.pdf
    • http://chopsticksmine.com/uploads/1/3/0/6/130604240/komesan_zisuxege_silegoramawu_puvedavu.pdf
    • http://tinyyetmightydesigns.com/uploads/1/3/0/3/130323337/130323337.html#academic+cv+latex+github

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005347.bin
54bb2f93d74897bc0999fe5fc66493fc3d05a36db92c7f6e864e597b565d2a18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5347 8788 bytes

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