General
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Target
file.exe
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Size
209KB
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Sample
221101-fn4zpsgca9
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MD5
dda494bf360d381f476a7b393f23e149
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SHA1
62be4a4a8508786b60ca79c1b5820fd16137a97e
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SHA256
fd225ffcd99aa8c5a2f8251ad4b975401f221110194bed21c60d19c453303bb8
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SHA512
d50be4302d658036ae4ba103c9c6ab4b49052525e7f44d387646c2af85629be031e0a7c55d4f358572c463da6a5e7aaa5bebb0ba5bd6b0d9a4a68e9fa8a6fc5f
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SSDEEP
3072:kCsETg6x8CCOv6WLGyT6wNn5/5ex6Y+bhHU+iXVmnRKQrx:kChvx/7vbLGyTvixZ+bhHU9XVmn3
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
Malware Config
Extracted
redline
mario23_10
167.235.252.160:10642
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auth_value
eca57cfb5172f71dc45986763bb98942
Extracted
djvu
http://fresherlights.com/lancer/get.php
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extension
.bozq
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offline_id
oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
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ransomnote
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Targets
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Target
file.exe
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Size
209KB
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MD5
dda494bf360d381f476a7b393f23e149
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SHA1
62be4a4a8508786b60ca79c1b5820fd16137a97e
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SHA256
fd225ffcd99aa8c5a2f8251ad4b975401f221110194bed21c60d19c453303bb8
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SHA512
d50be4302d658036ae4ba103c9c6ab4b49052525e7f44d387646c2af85629be031e0a7c55d4f358572c463da6a5e7aaa5bebb0ba5bd6b0d9a4a68e9fa8a6fc5f
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SSDEEP
3072:kCsETg6x8CCOv6WLGyT6wNn5/5ex6Y+bhHU+iXVmnRKQrx:kChvx/7vbLGyTvixZ+bhHU9XVmn3
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Detected Djvu ransomware
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Detects Smokeloader packer
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Blocklisted process makes network request
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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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Uses the VBS compiler for execution
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Accesses Microsoft Outlook profiles
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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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