General
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Target
ExtremeInjectorV3.exe
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Size
228KB
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Sample
240822-yb9crswhpm
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MD5
92fe53ca6c8f1a424db45bb3f7cdfe56
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SHA1
a6d4e261875b162f18f2cbbcc6411cec7b59be37
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SHA256
bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7
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SHA512
c4ce50e070a07626fd766212428b15df7d4f4fe680acdc9b0ba084156aea4e4443dd76ddba8ff9d9551a5c00b53d784a716caa95df1a78d80a65dd1bca2c4a16
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SSDEEP
6144:OloZM+rIkd8g+EtXHkv/iD4QL6XYe5xy4XKYZd8PRb8e1mLpsi:YoZtL+EP8QL6XYe5xy4XKYZd8hil
Behavioral task
behavioral1
Sample
ExtremeInjectorV3.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
ExtremeInjectorV3.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
ExtremeInjectorV3.exe
Resource
win10v2004-20240802-en
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1272960886117498900/YDNHOw3Kos6nSkhyh1-x7wdT3ReBATEXF8kthHRm5wmUtVhzhv3W6IJn4x78vB7KKS5f
Targets
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Target
ExtremeInjectorV3.exe
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Size
228KB
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MD5
92fe53ca6c8f1a424db45bb3f7cdfe56
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SHA1
a6d4e261875b162f18f2cbbcc6411cec7b59be37
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SHA256
bf1ddaef01c54156875f83d24de19811476ad618bf126460a764c0cb13bcf3b7
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SHA512
c4ce50e070a07626fd766212428b15df7d4f4fe680acdc9b0ba084156aea4e4443dd76ddba8ff9d9551a5c00b53d784a716caa95df1a78d80a65dd1bca2c4a16
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SSDEEP
6144:OloZM+rIkd8g+EtXHkv/iD4QL6XYe5xy4XKYZd8PRb8e1mLpsi:YoZtL+EP8QL6XYe5xy4XKYZd8hil
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Detect Umbral payload
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Credentials from Password Stores: Credentials from Web Browsers
Malicious Access or copy of Web Browser Credential store.
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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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Drops file in Drivers directory
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Deletes itself
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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
1Credentials In Files
1