General
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Target
9040c9ec7d537676875bff14b265eff03c61dd748360859c6e1f093104a96597
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Size
233KB
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Sample
231209-shtm1aaec4
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MD5
1a11c5c76b4e4f267f567dfe7b040b9e
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SHA1
1804bf7ccbbbca86c72a225f4c28bb831fcc16c1
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SHA256
9040c9ec7d537676875bff14b265eff03c61dd748360859c6e1f093104a96597
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SHA512
bb927b747dadba0bdc9b9d3a379dd6ab34a6d7be51ad7226198063fa600c268aa8e6f963be6795b795e95c8dc79341770a6937b56055114a8d4131ce4811266a
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SSDEEP
3072:If0rLmpGVb9dtrYvYtqI03X9WyYCXAAYqQLRDBSO/HIf89/:NLmpKhds4YA46kLkp
Static task
static1
Behavioral task
behavioral1
Sample
9040c9ec7d537676875bff14b265eff03c61dd748360859c6e1f093104a96597.exe
Resource
win10v2004-20231130-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.nbzi
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offline_id
csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1
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payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
risepro
193.233.132.51
Targets
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Target
9040c9ec7d537676875bff14b265eff03c61dd748360859c6e1f093104a96597
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Size
233KB
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MD5
1a11c5c76b4e4f267f567dfe7b040b9e
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SHA1
1804bf7ccbbbca86c72a225f4c28bb831fcc16c1
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SHA256
9040c9ec7d537676875bff14b265eff03c61dd748360859c6e1f093104a96597
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SHA512
bb927b747dadba0bdc9b9d3a379dd6ab34a6d7be51ad7226198063fa600c268aa8e6f963be6795b795e95c8dc79341770a6937b56055114a8d4131ce4811266a
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SSDEEP
3072:If0rLmpGVb9dtrYvYtqI03X9WyYCXAAYqQLRDBSO/HIf89/:NLmpKhds4YA46kLkp
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect ZGRat V1
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Detected Djvu ransomware
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Downloads MZ/PE file
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Modifies Installed Components in the 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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Drops startup file
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Executes dropped EXE
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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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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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
3Virtualization/Sandbox Evasion
1