Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2da667a3e836308…

MALICIOUS

PDF

49.9 KB Authoring application: Karbon
MD5: 534e267db2c1bc8e91884475f598b9e0 SHA-1: e5a830ceb3fd30b7c1a3cf7908530bc409ac18fa SHA-256: a2da667a3e836308a8cfa63a7b9441831598a87f1c79cd68f0cc7334fc7e4911
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, though partially corrupted, mentions 'vocabulary for IELTS', suggesting a lure to trick users into visiting potentially harmful educational or phishing content.

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://motorbikeglasses.com/uploads/1/3/0/5/130541356/jadovap.pdf
    • http://labeach.com/uploads/1/3/0/8/130874631/f57866c.pdf
    • http://mushroomsnaturally.com/uploads/1/3/0/2/130289397/4056070.pdf
    • http://murphyzcafe.net/uploads/1/3/0/5/130540401/69cf61cd.pdf
    • http://litigatingforchange.org/uploads/1/3/0/4/130476427/8207986.pdf
    • http://endoflifedoula.co/uploads/1/3/0/6/130621284/wigoxus.pdf
    • http://blcabinets.com/uploads/1/3/0/6/130620881/vodeb.pdf
    • http://sagerecoverystaff.com/uploads/1/3/0/6/130621455/noxeninudo-belus-gexemogozev-liripif.pdf
    • http://californiaspac.com/uploads/1/3/0/6/130620712/9b1e2.pdf
    • http://metrix-psy.com/uploads/1/3/0/8/130814145/c6cc20b1a.pdf
    • http://shnci.org/uploads/1/3/0/8/130873941/1409360.pdf
    • http://newdreamrenovations.com/uploads/1/3/0/5/130588721/3196180.pdf
    • http://kauffmancentergiftshop.org/uploads/1/3/0/5/130539085/5920937.pdf
    • http://pameladirnberger.com/uploads/1/3/0/6/130604739/130604739.html#school+vocabulary+for+ielts

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004526.bin
11eff0542ee112a7a4f3d5fa86892f13f7f7c80edb17354215cea33bb7714487		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4526 2768 bytes
font_01_sfnt_off00004ef4.bin
15e209132de0c7359b8de43a83fbc28496e2aff1a80f3f04de519c64de398a58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EF4 17552 bytes
font_02_sfnt_off00006b71.bin
644913a9148255598c6a9419e7f411e7e29160b9bcb2e5169aeb29dae970f1f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B71 7796 bytes

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