General
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Target
Fixer & Updater.exe
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Size
35.9MB
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Sample
241215-c88lva1re1
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MD5
db651ecb95f586518bbd2b536d331ceb
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SHA1
0641554b6ee9c9f6b5865e09630d91a112be78f8
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SHA256
0b3a47a99fe3a93f04bb0cfc6928a10eee1b95436aea0cfdd4b88fb002c4cd53
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SHA512
74a1cc0827c53c203c4f49b73602ab9c72e7c69f2909f9f0a05c436f2d9f3515683d5c8fd89d1f9c74d2120acf65590bcb517d53c5bc06103fa6aecd6b6623b5
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SSDEEP
393216:f1Du8BtuBw2FEL3Z3aLUoQvo6LP/SgbSpYvKEh1EdKwlGQKPJuGsiTfREsrgCYf1:fMguj8Q4VfvLqFTrYw
Static task
static1
Malware Config
Extracted
xworm
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install_file
System Volume Information Prefetch.exe
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pastebin_url
https://pastebin.com/raw/ZpWEzbQr
Targets
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Target
Fixer & Updater.exe
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Size
35.9MB
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MD5
db651ecb95f586518bbd2b536d331ceb
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SHA1
0641554b6ee9c9f6b5865e09630d91a112be78f8
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SHA256
0b3a47a99fe3a93f04bb0cfc6928a10eee1b95436aea0cfdd4b88fb002c4cd53
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SHA512
74a1cc0827c53c203c4f49b73602ab9c72e7c69f2909f9f0a05c436f2d9f3515683d5c8fd89d1f9c74d2120acf65590bcb517d53c5bc06103fa6aecd6b6623b5
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SSDEEP
393216:f1Du8BtuBw2FEL3Z3aLUoQvo6LP/SgbSpYvKEh1EdKwlGQKPJuGsiTfREsrgCYf1:fMguj8Q4VfvLqFTrYw
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Detect Xworm Payload
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StormKitty payload
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Stormkitty family
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Xenarmor family
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Xworm family
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Blocklisted process makes network request
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Executes dropped EXE
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Loads dropped DLL
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Accesses Microsoft Outlook accounts
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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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MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1