Analysis
- max time kernel
59s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
01/11/2022, 13:16
General
- Target 5752086ae677623e066dddc725cbccd7.exe
- Size 320KB
- Sample221101-qhsplacbe9
- SHA256 657df01ff7b15b233fc2cc87f61d35cc789fc043b17b5b9c58ec255aecb88b06
Malware Config
Extracted
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redline
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Google2
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167.235.71.14:20469
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auth_value
fb274d9691235ba015830da570a13578
Signatures
- Detects Smokeloader packer 1 IoCs
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 6 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 21 IoCs
- Suspicious use of WriteProcessMemory 34 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5752086ae677623e066dddc725cbccd7.exe"C:\Users\Admin\AppData\Local\Temp\5752086ae677623e066dddc725cbccd7.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\4A28.exeC:\Users\Admin\AppData\Local\Temp\4A28.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\4FB7.exeC:\Users\Admin\AppData\Local\Temp\4FB7.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\59CA.exeC:\Users\Admin\AppData\Local\Temp\59CA.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\5D55.exeC:\Users\Admin\AppData\Local\Temp\5D55.exe1⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\ubCKsAUBHChhUECKCUSECFsUHShuCFSHhCFChHACHScABCCHACaFefF.exe"C:\Users\Admin\AppData\Roaming\ubCKsAUBHChhUECKCUSECFsUHShuCFSHhCFChHACHScABCCHACaFefF.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp62F0.tmp.bat""3⤵
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C:\Users\Admin\AppData\Local\Temp\61EA.exeC:\Users\Admin\AppData\Local\Temp\61EA.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
4A28.exe
4A28.exe
4FB7.exe
4FB7.exe
59CA.exe
59CA.exe
5D55.exe
5D55.exe
61EA.exe
61EA.exe
ubCKsAUBHChhUECKCUSECFsUHShuCFSHhCFChHACHScABCCHACaFefF.exe
ubCKsAUBHChhUECKCUSECFsUHShuCFSHhCFChHACHScABCCHACaFefF.exe
memory/380-152-0x0000000000400000-0x0000000000428000-memory.dmp
memory/380-160-0x0000000007D40000-0x0000000007D7C000-memory.dmp
memory/380-158-0x0000000007DB0000-0x0000000007EBA000-memory.dmp
memory/380-159-0x0000000007CE0000-0x0000000007CF2000-memory.dmp
memory/380-157-0x0000000006420000-0x0000000006A38000-memory.dmp
memory/1348-139-0x0000000000950000-0x0000000000A88000-memory.dmp
memory/1348-140-0x00000000059B0000-0x0000000005F54000-memory.dmp
memory/1348-142-0x00000000058A0000-0x00000000058C2000-memory.dmp
memory/1348-141-0x0000000005400000-0x0000000005492000-memory.dmp
memory/1984-181-0x0000000000850000-0x000000000085B000-memory.dmp
memory/2372-168-0x00007FFA6E2D0000-0x00007FFA6ED91000-memory.dmp
memory/2372-172-0x00007FFA6E2D0000-0x00007FFA6ED91000-memory.dmp
memory/2372-167-0x0000000000430000-0x0000000000550000-memory.dmp
memory/2432-179-0x0000000000530000-0x0000000000D19000-memory.dmp
memory/2572-173-0x0000000000200000-0x00000000002D6000-memory.dmp
memory/2572-180-0x00007FFA6E2D0000-0x00007FFA6ED91000-memory.dmp
memory/3404-149-0x0000000000400000-0x0000000000412000-memory.dmp
memory/3404-150-0x0000000000400000-0x0000000000412000-memory.dmp
memory/3404-147-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4988-135-0x0000000000400000-0x0000000002C3E000-memory.dmp
memory/4988-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4988-134-0x0000000000400000-0x0000000002C3E000-memory.dmp
memory/4988-132-0x0000000002EA2000-0x0000000002EB7000-memory.dmp