General
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Target
steup_x86.zip
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Size
3.6MB
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Sample
210623-agxxt3qww6
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MD5
03eb61a6d9f9877c21917ba4c7a6b4ed
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SHA1
f062a7b7cac7af1d142f9a9fead954e2e66c8819
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SHA256
f6c4232e68b8f6b36754cf619f5282d24af7e9a27cca2bbe72121066fb0c3cfd
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SHA512
4a4712c925883a8e928e1e6f8c6e0afae1f1a0f7810e6c478dc343b15782065475ec42b8086870313f4682d337010dbac80ca04ca9b43172d3c289be2ef09199
Static task
static1
Behavioral task
behavioral1
Sample
steup_x86.exe
Resource
win7v20210408
Malware Config
Extracted
smokeloader
2020
http://ppcspb.com/upload/
http://mebbing.com/upload/
http://twcamel.com/upload/
http://howdycash.com/upload/
http://lahuertasonora.com/upload/
http://kpotiques.com/upload/
Extracted
redline
test
qurigoraka.xyz:80
Extracted
redline
GxQ3GyI1SVg=
DDkKBA0ZQRA9DTQUNixBQAA8OlgtKC5J
Targets
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Target
steup_x86
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Size
3.6MB
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MD5
05e6fd44959e6258c1e07bd12a4f284f
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SHA1
ea21133721033a9fe5da1dfce39f9875f5439ebb
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SHA256
4b89b98e5e7b67eac0fb79dbf4ad697cbd79f9fe51b8313accc8d7bfe6a439d2
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SHA512
66fac06f167254db8ce4e6e0b34c119f4aff9c3f6d4c9e691fcd82122a7036dc69b1b46967a46c59914a36c7d4241edfd37cb525572c16dcafc95c5cca118cef
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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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Suspicious use of NtCreateProcessExOtherParentProcess
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Vidar Stealer
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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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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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