Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14a09e33f7a1054…

MALICIOUS

PDF

40.3 KB Created: 2020-03-22 06:32:44 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bf7cb6bd78c93d8fb768683ddf73a847 SHA-1: 963db00f54926b3d492129c9a8a97e29cd5fe624 SHA-256: c14a09e33f7a1054b5972f99e19af9c963489f0df2bce45933c0c8751f731ed9
92 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, containing numerous external links to various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The document body, though partially garbled, contains a title related to 'parts of the flower for primary school children', likely a lure. The primary attack pattern involves directing users to a network of suspicious URLs, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://bluesmokeband.com/uploads/1/3/0/6/130604588/130604588.html#partes+de+la+flor+para+ni%C3%B1os+de+primaria
    • http://khouloud-balaout.ca/uploads/1/3/0/7/130775400/jemame.pdf
    • http://www.mirikatzman.com/uploads/1/3/0/2/130289205/xokiwej-raruf-ruvivifofu-mefewesub.pdf
    • http://goldeneaglebooks.us/uploads/1/3/0/4/130436519/pasuvivukovune.pdf
    • http://www.elemonline.com/uploads/1/3/0/5/130541131/lemoneterusuvi.pdf
    • http://mail.e-s-network.com/uploads/1/3/0/5/130588334/buxamo-vubiwikufuj-lozovisidobo-zagenetujo.pdf
    • http://biketoworkmemphis.com/uploads/1/3/0/6/130604218/390d7423.pdf
    • http://ironsmokedistillery.biz/uploads/1/3/0/4/130483213/3a778ff.pdf
    • http://omt�nk.se/uploads/1/3/0/2/130271043/lakivamiwadegor.pdf
    • http://1happybike.com/uploads/1/3/0/4/130489226/dapodenej.pdf
    • http://konjstudio.net/uploads/1/3/0/6/130620557/3632843.pdf
    • http://apexfiber.net/uploads/1/3/0/9/130969747/dosegegukotaz-zimonelojukin-gifewam.pdf
    • http://www.namlems.org/uploads/1/3/0/4/130436390/7639290.pdf
    • http://nielsenaerial.com/uploads/1/3/0/5/130551477/18e1a81b1a4.pdf
    • http://wisewomanspiral.com/uploads/1/3/0/7/130738989/zizezaw.pdf
    • http://jfs-enterprises.com/uploads/1/3/0/7/130738915/8c6fed479049652.pdf
    • http://borough18mc.com/uploads/1/3/0/2/130289433/5127639.pdf
    • http://mail.indiglowgal.com/uploads/1/3/0/4/130476873/5289158.pdf
    • http://versatilestyle.com/uploads/1/3/0/4/130489082/rugef-buxobozavotemo.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_off00007115.bin
0f30fb7cbec553cb9ec8d08e2aa0e2a7707401bc563bf0b04a9573993c0519f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7115 9004 bytes

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