General
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Target
u8542029.exe
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Size
316KB
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Sample
230904-f48mtsed25
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MD5
9be7155d4a92aee655188c13f3fb8a77
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SHA1
fb89091adce9edb48f90539154d566b710df5f3e
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SHA256
c8f3c74d30f1700a5c6a971318486e0ec9d67f29ce1ae32f3278bdfd21192cc8
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SHA512
e9983afb7d5e6669ae2e5f471678e44e0ab54391cb22a59c914adccaebe5ab0dd57d788d7edcf032f68550a064f6685b7bf181c3a55da18fff3702b0850bf7cc
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SSDEEP
6144:zR/tsQnf6X0M6+koYhXMxjwigfwfgbePu97rrAOQ322222KTq:zRlHVckoaXMxcePu97Hg22222iq
Behavioral task
behavioral1
Sample
u8542029.exe
Resource
win7-20230831-en
Malware Config
Extracted
amadey
3.87
193.233.255.9/nasa/index.php
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install_dir
ebb444342c
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install_file
legosa.exe
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strings_key
0b59a358b8646634fe523e0d5fe7fc43
Extracted
redline
10K
77.232.38.234:80
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auth_value
e0b9a8ef2c92da39d627d67103b3b93f
Extracted
redline
91.103.252.3:48665
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auth_value
0c16e9e64d9b037e5f1ff9082d8f439f
Extracted
amadey
3.83
5.42.65.80/8bmeVwqx/index.php
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install_dir
207aa4515d
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install_file
oneetx.exe
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strings_key
3e634dd0840c68ae2ced83c2be7bf0d4
Extracted
amadey
3.88
79.110.62.80/8bmeVwqx/index.php
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install_dir
e8bff37b77
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install_file
yiueea.exe
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strings_key
dc58c693b6742b940cbf7234174a0f66
Extracted
redline
010923
happy1sept.tuktuk.ug:11290
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auth_value
8338bf26f599326ee45afe9d54f7ef8e
Extracted
laplas
http://lpls.tuktuk.ug
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api_key
a0f588021b58e0c7908a163f8750678efedf2a66bf739a12427b379aef47ccde
Targets
-
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Target
u8542029.exe
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Size
316KB
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MD5
9be7155d4a92aee655188c13f3fb8a77
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SHA1
fb89091adce9edb48f90539154d566b710df5f3e
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SHA256
c8f3c74d30f1700a5c6a971318486e0ec9d67f29ce1ae32f3278bdfd21192cc8
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SHA512
e9983afb7d5e6669ae2e5f471678e44e0ab54391cb22a59c914adccaebe5ab0dd57d788d7edcf032f68550a064f6685b7bf181c3a55da18fff3702b0850bf7cc
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SSDEEP
6144:zR/tsQnf6X0M6+koYhXMxjwigfwfgbePu97rrAOQ322222KTq:zRlHVckoaXMxcePu97Hg22222iq
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Windows Firewall
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Stops running service(s)
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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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Executes dropped EXE
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Loads dropped DLL
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Uses the VBS compiler for execution
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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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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
2Windows Service
2Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Defense Evasion
Impair Defenses
3Disable or Modify Tools
2Modify Registry
3Scripting
1Virtualization/Sandbox Evasion
1