Analysis
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max time kernel
128s -
max time network
152s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
25-06-2020 09:37
Static task
static1
Behavioral task
behavioral1
Sample
Payment4758475.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Payment4758475.exe
Resource
win10v200430
General
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Target
Payment4758475.exe
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Size
439KB
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MD5
f505beac7f7bc5012780705a42338ac2
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SHA1
74efd44bd9ed7c3ae5d4f6b0487a6dd6bb4a57af
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SHA256
3e3d152759cbe2a09c5d88af90483638866ae67101b7094816248c739d0917b2
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SHA512
60048e3b7fc92e6eebe2596fa9f6956ca37d2096d9db27a99aeff856e049a89f0b90b09ed74a62461e427ea6cc88e060da8cfab5f9f85d93c3f4f4491838c88a
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.sunrvun.com - Port:
587 - Username:
loggshomes@sunrvun.com - Password:
o2AzYZ=_#flE
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4044-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/4044-3-0x0000000000446FCE-mapping.dmp family_agenttesla -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\IOWSlLY = "C:\\Users\\Admin\\AppData\\Roaming\\IOWSlLY\\IOWSlLY.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Payment4758475.exedescription pid process target process PID 3720 set thread context of 4044 3720 Payment4758475.exe RegSvcs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Payment4758475.exeRegSvcs.exepid process 3720 Payment4758475.exe 4044 RegSvcs.exe 4044 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Payment4758475.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 3720 Payment4758475.exe Token: SeDebugPrivilege 4044 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegSvcs.exepid process 4044 RegSvcs.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Payment4758475.exedescription pid process target process PID 3720 wrote to memory of 2828 3720 Payment4758475.exe schtasks.exe PID 3720 wrote to memory of 2828 3720 Payment4758475.exe schtasks.exe PID 3720 wrote to memory of 2828 3720 Payment4758475.exe schtasks.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe PID 3720 wrote to memory of 4044 3720 Payment4758475.exe RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Payment4758475.exe"C:\Users\Admin\AppData\Local\Temp\Payment4758475.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hLEpTyUlIHnm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBBE3.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpBBE3.tmpMD5
865d4698a14c2677d9322c65e3e5ba71
SHA156353e106cc72d5f094a96f595f04f40fa9d6f43
SHA256179a47c2eb23a4548c52e6277dd24ade0b66e90bee5be6a5780d76d2692b5dfc
SHA51214cbe2ef071087993c58baf298a423a145a8c911b2ec53211ec6103d75988e60bbb9a8fbb8d1e5faaf269b84c024694e3f700a7576e2f13ee6f2b47c44157e2e
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memory/2828-0-0x0000000000000000-mapping.dmp
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memory/4044-2-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/4044-3-0x0000000000446FCE-mapping.dmp