Analysis
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max time kernel
142s -
max time network
146s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-11-2020 20:21
Static task
static1
Behavioral task
behavioral1
Sample
TT COPY.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
TT COPY.exe
Resource
win10v20201028
General
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Target
TT COPY.exe
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Size
540KB
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MD5
8cb73260e8cc3d0f51da164e2f30f9db
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SHA1
956cdf7991eff9c64e6d2b9148bec190f347f908
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SHA256
89080cc94eae4cab0a8d50729214296a16767368c12a4f679baab998fad152fc
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SHA512
fb173cf6d551e2e223010cf2180bdaa289ee1f531c64345663caed9496ee59f9edaf6fb18028516f37b805e0b57522b63ab858578705431a891dfbc8ea92a2e9
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.microtechlab.in - Port:
587 - Username:
reports@microtechlab.in - Password:
pune@123
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral2/memory/4796-10-0x0000000004400000-0x0000000004402000-memory.dmp coreentity -
AgentTesla Payload 14 IoCs
Processes:
resource yara_rule behavioral2/memory/4352-13-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral2/memory/4352-14-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-25-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-27-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-26-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-28-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-29-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-33-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-36-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-32-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-31-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-30-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-35-0x000000000044CF5E-mapping.dmp family_agenttesla behavioral2/memory/4352-34-0x000000000044CF5E-mapping.dmp family_agenttesla -
Processes:
resource yara_rule behavioral2/memory/4796-11-0x0000000004F30000-0x0000000004F83000-memory.dmp rezer0 -
Disables Task Manager via registry modification
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Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
TT COPY.exedescription pid process target process PID 4796 set thread context of 4352 4796 TT COPY.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2324 4352 WerFault.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
RegSvcs.exeWerFault.exepid process 4352 RegSvcs.exe 4352 RegSvcs.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe 2324 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
TT COPY.exeRegSvcs.exeWerFault.exedescription pid process Token: SeDebugPrivilege 4796 TT COPY.exe Token: SeDebugPrivilege 4352 RegSvcs.exe Token: SeRestorePrivilege 2324 WerFault.exe Token: SeBackupPrivilege 2324 WerFault.exe Token: SeDebugPrivilege 2324 WerFault.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
TT COPY.exeRegSvcs.exedescription pid process target process PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4796 wrote to memory of 4352 4796 TT COPY.exe RegSvcs.exe PID 4352 wrote to memory of 1172 4352 RegSvcs.exe REG.exe PID 4352 wrote to memory of 1172 4352 RegSvcs.exe REG.exe PID 4352 wrote to memory of 1172 4352 RegSvcs.exe REG.exe PID 4352 wrote to memory of 1608 4352 RegSvcs.exe netsh.exe PID 4352 wrote to memory of 1608 4352 RegSvcs.exe netsh.exe PID 4352 wrote to memory of 1608 4352 RegSvcs.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"C:\Users\Admin\AppData\Local\Temp\TT COPY.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 15483⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1172-22-0x0000000000000000-mapping.dmp
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memory/1608-23-0x0000000000000000-mapping.dmp
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memory/2324-37-0x00000000057D0000-0x00000000057D1000-memory.dmpFilesize
4KB
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memory/2324-24-0x0000000004FA0000-0x0000000004FA1000-memory.dmpFilesize
4KB
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memory/4352-29-0x000000000044CF5E-mapping.dmp
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memory/4352-25-0x000000000044CF5E-mapping.dmp
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memory/4352-34-0x000000000044CF5E-mapping.dmp
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memory/4352-35-0x000000000044CF5E-mapping.dmp
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memory/4352-30-0x000000000044CF5E-mapping.dmp
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memory/4352-13-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/4352-14-0x000000000044CF5E-mapping.dmp
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memory/4352-15-0x00000000739D0000-0x00000000740BE000-memory.dmpFilesize
6.9MB
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memory/4352-20-0x0000000005200000-0x0000000005201000-memory.dmpFilesize
4KB
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memory/4352-21-0x0000000005CC0000-0x0000000005CC1000-memory.dmpFilesize
4KB
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memory/4352-31-0x000000000044CF5E-mapping.dmp
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memory/4352-32-0x000000000044CF5E-mapping.dmp
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memory/4352-36-0x000000000044CF5E-mapping.dmp
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memory/4352-33-0x000000000044CF5E-mapping.dmp
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memory/4352-27-0x000000000044CF5E-mapping.dmp
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memory/4352-26-0x000000000044CF5E-mapping.dmp
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memory/4352-28-0x000000000044CF5E-mapping.dmp
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memory/4796-0-0x00000000739D0000-0x00000000740BE000-memory.dmpFilesize
6.9MB
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memory/4796-9-0x0000000004410000-0x0000000004411000-memory.dmpFilesize
4KB
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memory/4796-3-0x0000000004AE0000-0x0000000004B3E000-memory.dmpFilesize
376KB
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memory/4796-4-0x0000000008ED0000-0x0000000008ED1000-memory.dmpFilesize
4KB
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memory/4796-7-0x0000000009470000-0x0000000009471000-memory.dmpFilesize
4KB
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memory/4796-12-0x0000000005030000-0x0000000005031000-memory.dmpFilesize
4KB
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memory/4796-11-0x0000000004F30000-0x0000000004F83000-memory.dmpFilesize
332KB
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memory/4796-10-0x0000000004400000-0x0000000004402000-memory.dmpFilesize
8KB
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memory/4796-1-0x0000000000020000-0x0000000000021000-memory.dmpFilesize
4KB