Analysis
- max time kernel
150s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
17/10/2022, 18:24
General
- Target file.exe
- Size 543KB
- Sample221017-w12ccacghj
- SHA256 6023d2e3d6ae4901fe997e9133c488dfbd50736e47034a6ee45d4c5952f26ee4
Malware Config
Extracted
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redline
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Nigh
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80.66.87.20:80
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auth_value
dab8506635d1dc134af4ebaedf4404eb
Signatures
- Detects Smokeloader packer 3 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.
- Executes dropped EXE 4 IoCs
- Checks computer location settings 2 TTPs 2 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.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 26 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\perfofov.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\perfofov.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwA0AA==3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Ekechvvajumessagecompetitive_1.exe"C:\Users\Admin\AppData\Local\Temp\Ekechvvajumessagecompetitive_1.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwA0AA==4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Ekechvvajumessagecompetitive_1.exeC:\Users\Admin\AppData\Local\Temp\Ekechvvajumessagecompetitive_1.exe4⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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-
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\perfofov.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\perfofov.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
perfofov.exe.log
powershell.exe.log
ModuleAnalysisCache
StartupProfileData-NonInteractive
Ekechvvajumessagecompetitive_1.exe
Ekechvvajumessagecompetitive_1.exe
Ekechvvajumessagecompetitive_1.exe
perfofov.exe
perfofov.exe
perfofov.exe
memory/2636-162-0x00000000070D0000-0x0000000007146000-memory.dmp
memory/2636-154-0x0000000002F60000-0x0000000002F72000-memory.dmp
memory/2636-163-0x0000000007720000-0x0000000007770000-memory.dmp
memory/2636-161-0x0000000006CD0000-0x0000000006D62000-memory.dmp
memory/2636-160-0x0000000007170000-0x0000000007714000-memory.dmp
memory/2636-165-0x0000000008040000-0x000000000856C000-memory.dmp
memory/2636-150-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2636-155-0x0000000005510000-0x000000000554C000-memory.dmp
memory/2636-152-0x0000000005B30000-0x0000000006148000-memory.dmp
memory/2636-153-0x0000000005620000-0x000000000572A000-memory.dmp
memory/2636-164-0x0000000007940000-0x0000000007B02000-memory.dmp
memory/2852-168-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2852-170-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2852-171-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3700-148-0x0000000000580000-0x0000000000588000-memory.dmp
memory/4068-135-0x00000000006B0000-0x00000000006B8000-memory.dmp
memory/4068-136-0x0000000005C70000-0x0000000005C92000-memory.dmp
memory/5100-141-0x00000000055C0000-0x0000000005626000-memory.dmp
memory/5100-138-0x0000000002610000-0x0000000002646000-memory.dmp
memory/5100-139-0x0000000004E20000-0x0000000005448000-memory.dmp
memory/5100-140-0x0000000004CD0000-0x0000000004D36000-memory.dmp
memory/5100-144-0x0000000006100000-0x000000000611A000-memory.dmp
memory/5100-142-0x00000000049A0000-0x00000000049BE000-memory.dmp
memory/5100-143-0x0000000007220000-0x000000000789A000-memory.dmp