General
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Target
Fix.bat
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Size
621B
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Sample
240512-xph73aed63
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MD5
e235e723f57a72ef725306c3e14d4726
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SHA1
9b2153053f8e89c300e32da5df32e9b990594aac
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SHA256
aebe0bafeb12706e614a45f2df40518d32d502093517ce95e2d3c1bbfd64ca67
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SHA512
0a4eda531be3904ae944d2c1c43755921cde4333a8e9d6bee6669e3de73b6c7859bb7ab3aa7a712fa2085d3fa1fb1d1ed14e5d6ed488a10bd2f6ab6ed049d25e
Static task
static1
Behavioral task
behavioral1
Sample
Fix.bat
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Fix.bat
Resource
win10v2004-20240426-en
Malware Config
Extracted
quasar
3.1.5
RPad
even-lemon.gl.at.ply.gg:33587
$Sxr-okPqrmZ8kNVUcS4Rp0
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encryption_key
XmcBnPuLlN1e8SHIRR1z
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install_name
$sxr-powershell.exe
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log_directory
$SXR-LOGS
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reconnect_delay
3000
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startup_key
$sxr-powershell
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subdirectory
$sxr-seroxen2
Targets
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Target
Fix.bat
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Size
621B
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MD5
e235e723f57a72ef725306c3e14d4726
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SHA1
9b2153053f8e89c300e32da5df32e9b990594aac
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SHA256
aebe0bafeb12706e614a45f2df40518d32d502093517ce95e2d3c1bbfd64ca67
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SHA512
0a4eda531be3904ae944d2c1c43755921cde4333a8e9d6bee6669e3de73b6c7859bb7ab3aa7a712fa2085d3fa1fb1d1ed14e5d6ed488a10bd2f6ab6ed049d25e
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Quasar payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Executes dropped EXE
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Modifies file permissions
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Modify Registry
1