Malicious PDF — malware analysis report

Static analysis result for SHA-256 94fbeda718729acd…

MALICIOUS

PDF

83.0 KB Authoring application: Mobipocket Creator
MD5: 0bb6331c3498ae2e1c87863df5be4612 SHA-1: ec7d6e109f80a7db7ecdf69561e7a41202f43fb7 SHA-256: 94fbeda718729acd52ee7ab37f89ab89e6e65c03691d8d3aa3816ad2f199499d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier indicated a high probability of maliciousness. Static analysis revealed a large number of embedded URLs pointing to various domains, suggesting a link farm designed to redirect users. The document body, though heavily obfuscated, contains metadata indicating it was created with Mobipocket Creator, which is unusual for typical document lures.

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://harrisonneese.com/uploads/1/3/0/5/130539370/2895896.pdf
    • http://nilu-shailen.com/uploads/1/3/0/6/130621780/863851.pdf
    • http://cre8.work/uploads/1/3/0/6/130621646/7dce679143bb0.pdf
    • http://michellesusanmarketing.com/uploads/1/3/0/6/130621213/8202695.pdf
    • http://randrcantina.com/uploads/1/3/0/2/130289340/4313646.pdf
    • http://cdc-design.co.uk/uploads/1/3/0/6/130605143/wajokijewiluba-voxoteri-malasebix.pdf
    • http://tedandromainthemorning.com/uploads/1/3/0/6/130621361/d05aa34.pdf
    • http://impulseakron.com/uploads/1/3/0/7/130775949/xumivotapapusuk.pdf
    • http://c1r.us/uploads/1/3/0/4/130490421/81d9c.pdf
    • http://highsocietysst.com/uploads/1/3/0/2/130273582/wanilo.pdf
    • http://happybreasts.net/uploads/1/3/0/4/130488851/lapol_mowizuvawo_mujowidavogu_tigasujed.pdf
    • http://www.mandicars.co.uk/uploads/1/3/0/6/130604881/5537433.pdf
    • http://www.alajwad.com.sa/uploads/1/3/0/7/130739837/4967954.pdf
    • http://dannybazilriley.com/uploads/1/3/0/5/130588778/0595b812d68af6.pdf
    • http://maritimeconferencecenter.devsite-1.com/uploads/1/3/0/5/130551153/130551153.html#the+origins+of+the+first+world+war+controversies+and+consensus+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c29.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C29 2652 bytes
font_01_sfnt_off00005871.bin
53aa112e2e23d1e1148ef565ac541b8a76bd39c6807a5c314895fac9e936d833		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5871 9072 bytes

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