Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e035684e0d74e62…

MALICIOUS

PDF

34.3 KB Authoring application: Karbon
MD5: fe0b50aab5c42128db3c31e349ab6783 SHA-1: afb0dda8f8b187cda4dcef48f47fa3530b2d9588 SHA-256: 9e035684e0d74e62f2b6b987e0b568fe791a15515ca3577223f1ec22ed4d7f98
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further suggests a phishing or traffic-driving intent. The document body text is heavily corrupted, preventing analysis of its specific lure. The primary attack pattern involves directing users to a network of external PDF files.

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://earthmammablog.com/uploads/1/3/0/4/130483537/4237077.pdf
    • http://pooleyslaw.co.uk/uploads/1/3/0/5/130542922/5944644.pdf
    • http://www.welloiledmamadesigns.com/uploads/1/3/0/7/130738845/susopibavubulog_vepetopubegafej_kiper.pdf
    • http://cristalbay.com/uploads/1/3/0/7/130775758/820ee8d5dcfd6.pdf
    • http://lauryan.org/uploads/1/3/0/5/130588606/dupibedonufenizidi.pdf
    • http://lisastory.space/uploads/1/3/0/5/130551222/9405458.pdf
    • http://cpanel.maderakubo.com/uploads/1/3/0/6/130620565/lusukute.pdf
    • http://www.saintaidansfestival.co.uk/uploads/1/3/0/2/130287472/wejol.pdf
    • http://marcoliverandzita.com/uploads/1/3/0/7/130739967/24ac55905afe005.pdf
    • http://shop.natureresource.net/uploads/1/3/0/5/130538937/mipadera.pdf
    • http://kathyshooksandneedles.com/uploads/1/3/0/6/130639308/kawajedoladimu.pdf
    • http://kalamazoocalendarproject.com/uploads/1/3/0/5/130548039/1319691.pdf
    • http://www.trendingtiptop.com/uploads/1/3/0/8/130874021/6947158.pdf
    • http://host138.carmichaelnl.com/uploads/1/3/0/6/130604636/dogufate.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/2/130289589/130289589.html#who+is+afraid+of+virginia+woolf+theme

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e89.bin
397a0f723c2b0db0427ffb78d8c08022b9e713a4d0b67da2b5dddd32565d55a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E89 7128 bytes

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