Analysis
- max time kernel
120s - max time network
122s - platform
windows10_x64 - resource
win10v20201028 - submitted
11/01/2021, 19:24
General
- Target 2dfcb83a318b6921c3754fa889247383.exe
- Size 1.4MB
- Sample210111-ym53xakfta
- SHA256 0cf16aa4344576e6376bb2b00d5aa4e119fe41f75b34475e2c213bc0eb8d403c
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Executes dropped EXE 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 20 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2dfcb83a318b6921c3754fa889247383.exe"C:\Users\Admin\AppData\Local\Temp\2dfcb83a318b6921c3754fa889247383.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\poe.exe,"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\poe.exe,"3⤵
- Modifies WinLogon for persistence
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C:\Users\Admin\poe.exe"C:\Users\Admin\poe.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3168-22-0x0000000002600000-0x0000000002601000-memory.dmp
memory/3168-21-0x00000000082E0000-0x00000000082EB000-memory.dmp
memory/3168-14-0x0000000073900000-0x0000000073FEE000-memory.dmp
memory/4444-23-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4444-27-0x0000000073900000-0x0000000073FEE000-memory.dmp
memory/4444-30-0x0000000005730000-0x0000000005731000-memory.dmp
memory/4444-32-0x00000000063A0000-0x00000000063A1000-memory.dmp
memory/4444-34-0x0000000006220000-0x0000000006221000-memory.dmp
memory/4680-8-0x0000000007640000-0x0000000007641000-memory.dmp
memory/4680-7-0x0000000004C70000-0x0000000004C71000-memory.dmp
memory/4680-6-0x0000000004BE0000-0x0000000004BFE000-memory.dmp
memory/4680-2-0x0000000073900000-0x0000000073FEE000-memory.dmp
memory/4680-5-0x0000000004C80000-0x0000000004C81000-memory.dmp
memory/4680-3-0x0000000000310000-0x0000000000311000-memory.dmp