General
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Target
dd521a930828a2e7f3cbbf7236acefd04b75213a9e14b4ff2f5bbbe53ebb178f.exe
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Size
27.1MB
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Sample
240924-gsxa4axdph
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MD5
1b3c6e3b3ab3641e0001874a99472682
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SHA1
d0cd60a4bcc664f25d06bb678f0aa124d2b8fcf3
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SHA256
dd521a930828a2e7f3cbbf7236acefd04b75213a9e14b4ff2f5bbbe53ebb178f
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SHA512
fac14eb191f7cca9edb2d6ef9d9c576eceaa32d6086ed54d7d816495f259f815b58b5dffc4a4914d0872fd99cdfdaabf08d72039fc4d27572330c6ef3c70532d
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SSDEEP
786432:tUpZvYGW0XpRFuSd3T+FhP8I+gqcSorasy6nMk6DNk:ypFY8pRF4ticfb
Static task
static1
Behavioral task
behavioral1
Sample
dd521a930828a2e7f3cbbf7236acefd04b75213a9e14b4ff2f5bbbe53ebb178f.exe
Resource
win7-20240903-en
Malware Config
Extracted
https://drive.google.com/uc?export=download&id=
Extracted
https://drive.google.com/uc?export=download&id=
Extracted
quasar
1.4.1
BIIG2
4mekey1.myftp.biz:4782
5c136035-7154-47b7-b78d-a0378c5e03a4
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encryption_key
5A1721840C7FCFA52998D9F98F97F4B8137E6734
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install_name
Windows Server.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
Windows Update
Extracted
Protocol: ftp- Host:
ftp.desckvbrat.com.br - Port:
21 - Username:
desckvbrat1 - Password:
developerpro21578Jp@@
Extracted
asyncrat
1.0.7
07Pjo24
4mekey1.myftp.biz:8848
DcRatMutex_qwqdanchun
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delay
1
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install
false
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install_folder
%AppData%
Extracted
xworm
4Mekey1.myftp.biz:7000
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install_file
USB.exe
Targets
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Target
dd521a930828a2e7f3cbbf7236acefd04b75213a9e14b4ff2f5bbbe53ebb178f.exe
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Size
27.1MB
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MD5
1b3c6e3b3ab3641e0001874a99472682
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SHA1
d0cd60a4bcc664f25d06bb678f0aa124d2b8fcf3
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SHA256
dd521a930828a2e7f3cbbf7236acefd04b75213a9e14b4ff2f5bbbe53ebb178f
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SHA512
fac14eb191f7cca9edb2d6ef9d9c576eceaa32d6086ed54d7d816495f259f815b58b5dffc4a4914d0872fd99cdfdaabf08d72039fc4d27572330c6ef3c70532d
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SSDEEP
786432:tUpZvYGW0XpRFuSd3T+FhP8I+gqcSorasy6nMk6DNk:ypFY8pRF4ticfb
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Detect Xworm Payload
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Quasar payload
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Blocklisted process makes network request
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
1File Deletion
1Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1