Malicious PDF — malware analysis report

Static analysis result for SHA-256 bde59ec76ea75084…

MALICIOUS

PDF

36.8 KB Authoring application: Poppler-utils
MD5: 5049eb44d62a554278e13b2c6eb78fb4 SHA-1: 940b370ab600ed310cbf593163bb9ea72e8a1fef SHA-256: bde59ec76ea7508461a1e8f460b3af99b1aa629c1e6eb0586d905741e763fcea
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a phishing lure, as indicated by the 'PDF_SEO_LINK_FARM' heuristic which detected a mass of external PDF links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing classification. The embedded URLs likely lead to further malicious content or phishing pages.

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://michaelshusko.com/uploads/1/3/0/3/130323814/5275153.pdf
    • http://mobilebillboardsredwoodcity.com/uploads/1/3/0/4/130488332/8560505.pdf
    • http://newlifeknox.com/uploads/1/3/0/3/130379170/5982541.pdf
    • http://uktvspainuk.com/uploads/1/3/0/6/130639173/7133898.pdf
    • http://agingwell360.com/uploads/1/3/0/3/130379218/nibati.pdf
    • http://bsfastigheter.se/uploads/1/3/0/6/130639855/2fc2d5552810.pdf
    • http://bigrexstudios.com/uploads/1/3/0/5/130588649/zuzizofobuzi-gesefidodas-palopilufigaj.pdf
    • http://dirtysoles305.com/uploads/1/3/0/6/130620892/zipevajujakiv.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/8/130814457/130814457.html#scalp+acupuncture+for+parkinson%27s+disease

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001197.bin
fbdaf0929de823aebe6e4796ac2d892b6b52074a87d885d791e136fc1cf835e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1197 7848 bytes

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