Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed85477d8afdc0a…

MALICIOUS

PDF

33.8 KB Authoring application: Karbon
MD5: a573f80549a7efa4ecd2a9d154314df8 SHA-1: ed6a75c51631ce2a44607be63870c7c3d8e22dcb SHA-256: 3ed85477d8afdc0ac6f714c0411054340a1f97bf4334884d4e424c062e315e67
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'SEO Link Farm' heuristic, suggesting a malicious intent to redirect users. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or traffic redirection campaign. The document body, though heavily obfuscated, contains phrases related to 'Reasoning ability tips and tricks', likely a lure to disguise the malicious links.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://walterpanas1975.com/uploads/1/3/1/0/131070051/xafesomejomezita.pdf
    • http://onedirectiontickets.net/uploads/1/3/0/2/130289620/747205.pdf
    • http://moabgearheads.com/uploads/1/3/0/8/130874127/399d98.pdf
    • http://shuffletownflorist.com/uploads/1/3/0/4/130491703/3ce19a15459e29.pdf
    • http://minimalteacher.com/uploads/1/3/0/6/130621958/zosasereseduta.pdf
    • http://multiboutiqueeve.com/uploads/1/3/0/3/130313539/9857145.pdf
    • http://barkleypet.com/uploads/1/3/0/5/130543240/movafidavigokoxig.pdf
    • http://admgems.com/uploads/1/3/0/2/130270776/vejibawe.pdf
    • http://renegadegreens.com/uploads/1/3/0/9/130969089/kegiwagubavoliv-savawibin-repufijiw-fomiwuwabeziw.pdf
    • http://mypaparonispizza.com/uploads/1/3/0/3/130379226/6027674.pdf
    • http://www.simlash.com/uploads/1/3/0/4/130435941/tufagujunidilutibuxi.pdf
    • http://3vgfj.bpmtc.com/uploads/1/3/0/8/130815017/130815017.html#reasoning+ability+tips+and+tricks+pdf
    • http://minimalt

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c3c.bin
2cce3a8dda05c82492dc7ad344323d49ea664f1138a0acd1601ddae34cbf0ee6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3C 8144 bytes

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