Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30b6f7926731e14…

MALICIOUS

PDF

38.7 KB Created: 2020-04-04 06:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9c6c9b062873daa3edd190983dd099d0 SHA-1: 0bd3dfaef57f48920900757ce0690d0b53b0fa20 SHA-256: e30b6f7926731e14883510a7b3147674f217c01651fe172e53e9dc1e1919b1a1
70 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, forming a link farm, with the primary purpose of directing users to potentially malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The document body contains a reference to 'john deere jx75 technical manual' which appears to be a pretext to entice users to click on the embedded 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xocobean.com/uploads/1/3/0/6/130639123/130639123.html#john+deere+jx75+technical+manual
    • http://purplepongo.com/uploads/1/3/0/5/130590531/wubipojusuduboza.pdf
    • http://cjoycommunications.com/uploads/1/3/0/3/130313091/pesumofat_benimorekowazo_murep.pdf
    • http://mygoalhero.com/uploads/1/3/1/4/131414661/zotujuvujo-fored-pexazufipawod-posavoveza.pdf
    • http://cuttingnocorners.com/uploads/1/3/0/5/130547275/c9ad3d47.pdf
    • http://tintic.co/uploads/1/3/1/3/131378953/jisanu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063e9.bin
0a091d5205c73794b348146b7141438ee115851b2d5587ae9aa362cc4167efe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E9 8572 bytes
font_01_sfnt_off000084df.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84DF 2616 bytes

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