General
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Target
4e53a592f8165c2caab6ba1ea77f0508.exe
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Size
189KB
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Sample
231211-re2nrsaba8
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MD5
4e53a592f8165c2caab6ba1ea77f0508
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SHA1
179d577d0978900c0d970b5819c7587476a238e9
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SHA256
43d7e7f51f3ee88c66a2d6062d82d444c04978b3323c5caf5424585be9c0294c
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SHA512
14f990bab517b6d8d3ace2ad118baae824d71574b4e3899905e4ce02e9fef886dccb36408d1dbfe95a199ef0fab026a5f4d2c608d8e305e4c0ab49798c3d69c6
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SSDEEP
3072:xJ6tYBLr3i+ww+stiRRUoAmKYrZs8dFAUj75Nq:ytYBLzi+9kRUoApiz
Static task
static1
Behavioral task
behavioral1
Sample
4e53a592f8165c2caab6ba1ea77f0508.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
4e53a592f8165c2caab6ba1ea77f0508.exe
Resource
win10v2004-20231127-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
.hhuy
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offline_id
gG3wF8nDWRqLztkHPAxMzpvNVlmLBMgQKmKiCNt1
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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
amadey
4.13
http://5.42.65.125
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install_dir
0de90fc5c7
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install_file
Utsysc.exe
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strings_key
b34dd8f60e55add4645c4650cc7f7e7e
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url_paths
/k92lsA3dpb/index.php
Extracted
risepro
193.233.132.51
Targets
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Target
4e53a592f8165c2caab6ba1ea77f0508.exe
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Size
189KB
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MD5
4e53a592f8165c2caab6ba1ea77f0508
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SHA1
179d577d0978900c0d970b5819c7587476a238e9
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SHA256
43d7e7f51f3ee88c66a2d6062d82d444c04978b3323c5caf5424585be9c0294c
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SHA512
14f990bab517b6d8d3ace2ad118baae824d71574b4e3899905e4ce02e9fef886dccb36408d1dbfe95a199ef0fab026a5f4d2c608d8e305e4c0ab49798c3d69c6
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SSDEEP
3072:xJ6tYBLr3i+ww+stiRRUoAmKYrZs8dFAUj75Nq:ytYBLzi+9kRUoApiz
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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 Windows Firewall
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.NET Reactor proctector
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
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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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Loads dropped DLL
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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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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
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
1Virtualization/Sandbox Evasion
1