General
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Target
08015c72835842b57db890a4740daa7e8503b792a8792be04942e2cbb48c401c
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Size
729KB
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Sample
221011-e4xd5aedg9
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MD5
b9b5214f8aedd0cc1d4fb66d5cb56bc1
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SHA1
ec50878f6bf713ddf85d0e55d79234e5548ec97f
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SHA256
08015c72835842b57db890a4740daa7e8503b792a8792be04942e2cbb48c401c
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SHA512
0bed997219da1974c99ada8b3afbe2436885d7dc3fb3e4bf8c0df7efe1ed60dce20532454ec3552c6694c740e32b307d7f49ce5689e8502198c51a65fd98f7d4
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SSDEEP
12288:SnYJGk739xKFBiL20bnjNcgecXl6GWptiGrmqHLAF2FiS7cXq8oUQ:SnyD91K0bn5cql6kLMZFFc6N
Static task
static1
Behavioral task
behavioral1
Sample
08015c72835842b57db890a4740daa7e8503b792a8792be04942e2cbb48c401c.exe
Resource
win10v2004-20220901-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
08015c72835842b57db890a4740daa7e8503b792a8792be04942e2cbb48c401c
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Size
729KB
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MD5
b9b5214f8aedd0cc1d4fb66d5cb56bc1
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SHA1
ec50878f6bf713ddf85d0e55d79234e5548ec97f
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SHA256
08015c72835842b57db890a4740daa7e8503b792a8792be04942e2cbb48c401c
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SHA512
0bed997219da1974c99ada8b3afbe2436885d7dc3fb3e4bf8c0df7efe1ed60dce20532454ec3552c6694c740e32b307d7f49ce5689e8502198c51a65fd98f7d4
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SSDEEP
12288:SnYJGk739xKFBiL20bnjNcgecXl6GWptiGrmqHLAF2FiS7cXq8oUQ:SnyD91K0bn5cql6kLMZFFc6N
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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