Malicious PDF — malware analysis report

Static analysis result for SHA-256 b08ddaead5aa7a1d…

MALICIOUS

PDF

38.0 KB Created: 2020-03-29 12:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4c647e9f4e42eafd8b1ed81bdaa4a2c2 SHA-1: 0a85bb8cf1828cd76554adb8c51c93e9814daca0 SHA-256: b08ddaead5aa7a1d6b6ed9a9fdf64ff2d0a94358c0464ae3a06ce37a0c8baaf7
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used to distribute malware or conduct phishing attacks. The document body, though partially corrupted, suggests an attempt to disguise the malicious intent by appearing as educational material. The primary heuristic identified a link farm, indicating a coordinated effort to host malicious content across multiple domains. The embedded URLs point to various PDF files and an HTML page, likely serving as landing pages for further exploitation.

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.
  • 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://74-123-79-26.mgwnet.com/uploads/1/3/0/6/130604531/130604531.html#rubrica+para+evaluar+matematicas+preescolar
    • http://redcarpetmontage.com/uploads/1/3/0/2/130287943/ramudip-luxegefala.pdf
    • http://trainme2day.com/uploads/1/3/0/6/130605498/30088be.pdf
    • http://overtonplanning.com/uploads/1/3/0/4/130483770/159e9b491bb30.pdf
    • http://mahavidyas.com/uploads/1/3/0/6/130639763/laneruluxagi_gomigulubojasop_gezez_vukezokadixal.pdf
    • http://chezandy.xyz/uploads/1/3/0/5/130543065/turizip.pdf
    • http://chesterfootandankleclinic.com/uploads/1/3/0/3/130323216/6237269.pdf
    • http://recoletter.com/uploads/1/3/0/6/130639652/7675665.pdf
    • http://drawyouradventure.com/uploads/1/3/0/6/130603760/a781704aa974bc.pdf
    • http://carryyourcrossconference.org/uploads/1/3/0/8/130874124/gegaligujawuzi.pdf
    • http://hostmaster.glasgowdoorsopendays.org.uk/uploads/1/3/0/8/130874381/3782578.pdf
    • http://termeulenfoundation.org/uploads/1/3/1/4/131406610/jeviwaponaji.pdf
    • http://chadpercivaldesigns.com/uploads/1/3/0/2/130272414/9312006.pdf
    • http://koolcurvess.com/uploads/1/3/0/5/130538997/9730404.pdf
    • http://yourfundraisingfriends.com/uploads/1/3/0/7/130775589/zomepadozu-kijakoke-juparefodoko-ninojije.pdf
    • http://oliviamcfadzen.com/uploads/1/3/0/5/130545098/veliro.pdf
    • http://beebrighthives.com/uploads/1/3/0/9/130969501/liretalewevelovezuvo.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c9.bin
3d4ed960ba6dabccd634408942988569bced85c0c3b3e4293e0723945dc1b180		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C9 9304 bytes

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