General
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Target
630b68e48481a6f6132cae67d70c99bcdf1b755dcc54d0894b0299c7620e28a7
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Size
250KB
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Sample
230328-cwpyzaad4z
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MD5
8e4e1eaaafcba21ca12d1fba9ec0dfff
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SHA1
0f306ddfcf0d8e99dee3fd38c1eae7fceea58516
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SHA256
630b68e48481a6f6132cae67d70c99bcdf1b755dcc54d0894b0299c7620e28a7
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SHA512
3f67c76fa7fa3e287aaa6c902a3ddfaf6d9683f64c8b35dd017aab4acc9d578676467d7a3b943d165a7dfe123a5d77756a35faede60cf00ded06430373c0136a
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SSDEEP
3072:jWulaHyqtkyldLhyfjmGR7Rdi6XgkR1vxUPld7VIJxI3tgJvXKC9i8grdj5Ev2sI:S8OyqvdLgr33zvxUbVIJxGtgRu3IOs
Static task
static1
Behavioral task
behavioral1
Sample
630b68e48481a6f6132cae67d70c99bcdf1b755dcc54d0894b0299c7620e28a7.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
smokeloader
2022
http://potunulit.org/
http://hutnilior.net/
http://bulimu55t.net/
http://soryytlic4.net/
http://novanosa5org.org/
http://nuljjjnuli.org/
http://tolilolihul.net/
http://somatoka51hub.net/
http://hujukui3.net/
http://bukubuka1.net/
http://golilopaster.org/
http://newzelannd66.org/
http://otriluyttn.org/
http://aapu.at/tmp/
http://poudineh.com/tmp/
http://firsttrusteedrx.ru/tmp/
http://kingpirate.ru/tmp/
Extracted
djvu
http://zexeq.com/test2/get.php
http://zexeq.com/lancer/get.php
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extension
.jywd
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offline_id
MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
smokeloader
pub1
Targets
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Target
630b68e48481a6f6132cae67d70c99bcdf1b755dcc54d0894b0299c7620e28a7
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Size
250KB
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MD5
8e4e1eaaafcba21ca12d1fba9ec0dfff
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SHA1
0f306ddfcf0d8e99dee3fd38c1eae7fceea58516
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SHA256
630b68e48481a6f6132cae67d70c99bcdf1b755dcc54d0894b0299c7620e28a7
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SHA512
3f67c76fa7fa3e287aaa6c902a3ddfaf6d9683f64c8b35dd017aab4acc9d578676467d7a3b943d165a7dfe123a5d77756a35faede60cf00ded06430373c0136a
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SSDEEP
3072:jWulaHyqtkyldLhyfjmGR7Rdi6XgkR1vxUPld7VIJxI3tgJvXKC9i8grdj5Ev2sI:S8OyqvdLgr33zvxUbVIJxGtgRu3IOs
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Detected Djvu ransomware
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Downloads MZ/PE file
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Executes dropped EXE
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Modifies file permissions
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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