Malicious PDF — malware analysis report

Static analysis result for SHA-256 4296985f3eccffd9…

MALICIOUS

PDF

50.3 KB Authoring application: LibreOffice Draw
MD5: 2dd2108e3d3411364f25f410d32133c3 SHA-1: 5b146c94def248b94ae9b8900c625ab2f20cb286 SHA-256: 4296985f3eccffd9a70168c48a8fdb17d48e091e5e7a8e02ba65e9221944466d
150 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to direct users to external PDF documents hosted on various suspicious domains. The document body text mentions 'Ielts liz recent essay questions' as a lure, and the embedded URLs are predominantly from newly registered or low-reputation domains. This indicates a phishing or scam campaign aiming to redirect users to malicious content.

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://friend-vibes.com/uploads/1/3/0/2/130289166/3e587c.pdf
    • http://beaute2suit.com.au/uploads/1/3/0/7/130776734/buwapovo.pdf
    • http://cavumcloud.com/uploads/1/3/0/4/130435784/lalevoxabu.pdf
    • http://approachableworld.com/uploads/1/3/0/5/130588157/6073410.pdf
    • http://atlanta-treeservice.com/uploads/1/3/0/2/130270953/9848727.pdf
    • https://gasasefen.weebly.com/uploads/1/3/0/2/130288483/2444ff04.pdf
    • http://eco2magnesia.com/uploads/1/3/0/6/130639882/6430650.pdf
    • http://aenahotels.com/uploads/1/3/0/4/130435884/168800.pdf
    • http://tournoidevignoles.com/uploads/1/3/0/6/130639895/vijurefusuvaluvin.pdf
    • http://cambridgebrassband.weebly.com/uploads/1/3/0/6/130620572/4cf4f328944.pdf
    • http://rhjerkyoutlet.com/uploads/1/3/0/6/130620839/palasutepigeneb-disonibinibut.pdf
    • http://theelfbox.com/uploads/1/3/0/6/130620934/130620934.html#ielts+liz+recent+essay+questions

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fc4.bin
e1acbde735aef73c8855cf1b456ed8b5c467aa4ad3c72963d262e4e54d4c7162		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4 8632 bytes

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