Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1e9b2487437fec…

MALICIOUS

PDF

34.0 KB Authoring application: PDFBox
MD5: b7d2672ffc060a9ce085e4b571e15628 SHA-1: f6b62f40c821b8101929d485f0e610d4aabf7a11 SHA-256: dc1e9b2487437fec63dba89648e4ab4a8b0980abb666a713faa0cde9dd89654a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning or phishing. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to a link farm strategy. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious intent. The document body, though partially corrupted, contains references to 'Horizontal wind turbine blade design' and lists numerous URLs, reinforcing the lure mechanism.

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://literary.cafe/uploads/1/3/0/5/130541552/5574332.pdf
    • http://spotlightphotos.net/uploads/1/3/0/5/130588703/689289.pdf
    • http://jgamble.com/uploads/1/3/0/7/130776617/2c72d4.pdf
    • http://rejuvenationarts.com/uploads/1/3/0/6/130639822/fazukelokozoniveb.pdf
    • http://laloupe.studio/uploads/1/3/0/4/130489465/810523d6100901.pdf
    • http://stockman-boutique.com/uploads/1/3/0/3/130324065/9595986.pdf
    • http://franceinthespring.com/uploads/1/3/0/6/130621167/1536606.pdf
    • http://mooreequineevents.com/uploads/1/3/0/7/130740053/9461837.pdf
    • http://amashengebusinessholdings.co.za/uploads/1/3/0/6/130639227/9103722.pdf
    • http://naillogicinstitute.com/uploads/1/3/0/4/130488179/6c7ff1e1.pdf
    • http://doverashop.com/uploads/1/3/0/2/130270855/doxogevunumebi.pdf
    • http://old-waverley-full.devsite-1.com/uploads/1/3/0/7/130775537/130775537.html#horizontal+wind+turbine+blade+design

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e03.bin
b8d2b7534df522f4956d22af8a2698eeb017f35bbf8f1fe8c5e6356946a665a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E03 7964 bytes

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