Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff7a1a29b43f341…

MALICIOUS

PDF

42.6 KB Authoring application: Inkscape
MD5: f19fc5d850a755bda070191e9130a3bf SHA-1: 03f1eee5241548bcedb817ffc384a8560af4549c SHA-256: aff7a1a29b43f3412f744d86209f9031b54d7360ed3b4cb18f74ddf85d618f1e
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, mentions 'Brighton fc football ground guide', suggesting a lure to disguise the malicious intent. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://safedreams.org/uploads/1/3/0/2/130271212/xepawutuxufimopel.pdf
    • https://pejetagoj.weebly.com/uploads/1/3/0/2/130288729/609819.pdf
    • http://edemtec.com/uploads/1/3/0/3/130324075/woxow-wituropadug.pdf
    • http://kelseyelizabethphoto.com/uploads/1/3/0/6/130621267/jifududerirer.pdf
    • http://podollangpis.devsite-1.com/uploads/1/3/0/5/130551210/130551210.html#brighton+fc+football+ground+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001041.bin
56b57dd5427604b005d2d85f85c50a7c332d1fd6d692b671c0a3b9e9e209d251		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1041 8296 bytes

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