Analysis
- max time kernel
148s - max time network
149s - platform
windows10_x64 - resource
win10v20210410 - submitted
20/04/2021, 18:22
General
- Target comparendopicoycedula365215999runtcomco.exe
- Size 2.3MB
- Sample210420-nc34wpgble
- SHA256 368e9e3d450bae08f20e5ab0937dcd47a03835daabe900ddf87c746fb99a50fb
Malware Config
Signatures
- BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
- BitRAT Payload 1 IoCs
- Executes dropped EXE 3 IoCs
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: RenamesItself 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\comparendopicoycedula365215999runtcomco.exe"C:\Users\Admin\AppData\Local\Temp\comparendopicoycedula365215999runtcomco.exe"1⤵
- 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\comparendopicoycedula365215999runtcomco.exe"C:\Users\Admin\AppData\Local\Temp\comparendopicoycedula365215999runtcomco.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\0TEyr8Qv5FOTXx2l.exe"C:\Users\Admin\AppData\Local\Temp\0TEyr8Qv5FOTXx2l.exe"3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\windowsdefenderlogsini\antimalawareserviceexecutablee.exe-a "C:\Users\Admin\AppData\Local\cf00793c\plg\45Ca2nPg.json"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\windowsdefenderlogsini\antimalawareserviceexecutablee.exe-a "C:\Users\Admin\AppData\Local\Temp\unk.xml"4⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1940-127-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/1940-125-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/2288-139-0x0000000005470000-0x000000000550C000-memory.dmp
memory/2288-131-0x0000000000C50000-0x0000000000C51000-memory.dmp
memory/2792-140-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2792-143-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/3540-124-0x000000000B810000-0x000000000B999000-memory.dmp
memory/3540-123-0x0000000008130000-0x0000000008306000-memory.dmp
memory/3540-122-0x00000000075A0000-0x00000000075A9000-memory.dmp
memory/3540-121-0x0000000005A00000-0x0000000005A01000-memory.dmp
memory/3540-120-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
memory/3540-119-0x00000000059C0000-0x00000000059C1000-memory.dmp
memory/3540-114-0x0000000000F60000-0x0000000000F61000-memory.dmp
memory/3540-118-0x0000000005AF0000-0x0000000005AF1000-memory.dmp
memory/3540-117-0x0000000005FF0000-0x0000000005FF1000-memory.dmp
memory/3540-116-0x0000000005A50000-0x0000000005A51000-memory.dmp