Malicious PDF — malware analysis report

Static analysis result for SHA-256 8edc3e56763e4e0a…

MALICIOUS

PDF

40.3 KB Authoring application: LibreOffice Draw
MD5: 71e6c8a9882da2df1f850fdb4010e309 SHA-1: 1d5ec2c39655ae5a7567496e019851fa8eec509e SHA-256: 8edc3e56763e4e0a917c136bb8f75e6bab02bb0c376487a621921e6d7487b1ae
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. The document body mentions a quiz about personality traits, suggesting a lure to engage the user. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or scam-related attack pattern. No scripts were extracted from this sample.

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://resimmagnet.com/uploads/1/3/0/7/130775810/5793586.pdf
    • http://the-wild-moon.com/uploads/1/3/0/7/130775634/8841329.pdf
    • http://thebravesboard.com/uploads/1/3/0/2/130291433/bebonoda.pdf
    • http://nigella--sativa.com/uploads/1/3/0/3/130313306/zosifurugixawe.pdf
    • http://makervet.com/uploads/1/3/0/6/130621689/8813382.pdf
    • http://101sarah.com/uploads/1/3/0/4/130435544/ff473.pdf
    • http://discoverya.com/uploads/1/3/0/6/130620902/7005484.pdf
    • http://sfgflooring.co.uk/uploads/1/3/0/5/130588675/siloxufevut.pdf
    • http://winkwhale.com/uploads/1/3/0/6/130639124/b04f4b.pdf
    • http://danishamericanheritagesociety.org/uploads/1/3/0/2/130288864/5960239.pdf
    • http://9um2d1.salon225.com/uploads/1/3/0/4/130488172/130488172.html#which+of+the+big+5+personality+traits+predicts+achievement+quizlet

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30A1 16036 bytes
font_01_sfnt_off000047b0.bin
458c795b7e48e412751da3a35ed96b2b310356dde57f65c6184d7332043be02b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47B0 7860 bytes

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