Malicious PDF — malware analysis report

Static analysis result for SHA-256 f740afb33ab1bd48…

MALICIOUS

PDF

53.8 KB Authoring application: LibreOffice Draw
MD5: 18b0a1186fa25af0b89af9999f2b92f6 SHA-1: c60eef8b0e128836b1e0b508f7485545bef4480a SHA-256: f740afb33ab1bd483c85de48a7a3ab45f5f7c7e32b85898ea5fdd0a5b9a5680a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, a technique commonly used for SEO poisoning or phishing. The heuristic PDF_SEO_LINK_FARM specifically indicates a link farm, suggesting the document is designed to drive traffic to external sites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious traffic generation intent. No scripts were extracted from this sample.

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://battle-buddies.net/uploads/1/3/0/6/130605497/2473745.pdf
    • http://rbrvocal.weebly.com/uploads/1/3/0/3/130313513/096f6f260b7c41.pdf
    • http://bellaandmay.com/uploads/1/3/0/5/130590244/8745489.pdf
    • http://handheldnation.com/uploads/1/3/0/3/130323465/fugutivapifo_kolidirid_bewokidovig.pdf
    • http://apkroad.com/uploads/1/3/0/5/130551181/9547334.pdf
    • http://madeinrome.shop/uploads/1/3/0/4/130476075/fepamiguxawuxit-sivirabifogav-wilinuloketa-kovubotume.pdf
    • http://eatwell2bwell.com/uploads/1/3/0/6/130620609/batulirupezatu.pdf
    • http://monicarayscott.com/uploads/1/3/0/7/130738956/b0c7d063e9352c7.pdf
    • http://easternshorechess.com/uploads/1/3/0/3/130379060/4645595.pdf
    • http://djspizza1.com/uploads/1/3/0/2/130292098/130292098.html#maharshi+audio+songs++naa+songs

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012cb.bin
558d1183ee7be8595592cd42ddb451fb396a9ae539ab5dfef7d43051877f3801		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB 8184 bytes
font_01_sfnt_off00008c9f.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9F 16036 bytes

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