General
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Target
3ea4071b680bbb4d5c696a2249f40ef65215235e80a2bf686a7312a93528f17b
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Size
729KB
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Sample
221011-bzndwahebp
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MD5
900fbfb354c10ffba28efb323656ab69
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SHA1
19d87bba75df15fbdbb9c86b9ae87977899bef9f
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SHA256
3ea4071b680bbb4d5c696a2249f40ef65215235e80a2bf686a7312a93528f17b
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SHA512
c40aa5d3c432dd874821f14445bf54dea367c0fb23b130c307aba19c1ba6f93ebdd5dddbc274e25a0add9f23a9c09edfffce1ccc763e15ee78f1d3d31db26ce5
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SSDEEP
12288:+S2Fq/YBcovFC7OHFev8uEHX9+NMAMeK0sEybVMgNaKX9C6viGDTMEYS4H0Zu1/D:+FFcq47i8yX9+NMAzKzm+8QiGMPS4OuV
Static task
static1
Behavioral task
behavioral1
Sample
3ea4071b680bbb4d5c696a2249f40ef65215235e80a2bf686a7312a93528f17b.exe
Resource
win10-20220901-en
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
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extension
.tohj
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offline_id
SSHsHMHGmSIhrz50VnIxLJJX15osxEQY6iXedXt1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
54.9
517
https://t.me/larsenup
https://ioc.exchange/@zebra54
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profile_id
517
Targets
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Target
3ea4071b680bbb4d5c696a2249f40ef65215235e80a2bf686a7312a93528f17b
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Size
729KB
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MD5
900fbfb354c10ffba28efb323656ab69
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SHA1
19d87bba75df15fbdbb9c86b9ae87977899bef9f
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SHA256
3ea4071b680bbb4d5c696a2249f40ef65215235e80a2bf686a7312a93528f17b
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SHA512
c40aa5d3c432dd874821f14445bf54dea367c0fb23b130c307aba19c1ba6f93ebdd5dddbc274e25a0add9f23a9c09edfffce1ccc763e15ee78f1d3d31db26ce5
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SSDEEP
12288:+S2Fq/YBcovFC7OHFev8uEHX9+NMAMeK0sEybVMgNaKX9C6viGDTMEYS4H0Zu1/D:+FFcq47i8yX9+NMAzKzm+8QiGMPS4OuV
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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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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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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