Analysis
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max time kernel
121s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 00:57
Static task
static1
Behavioral task
behavioral1
Sample
2001016641..exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
2001016641..exe
Resource
win10v2004-20220414-en
General
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Target
2001016641..exe
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Size
470KB
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MD5
084de63048b0bf916e1f67db05c27937
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SHA1
b36fccbc2bb51f77e609d2b06248c8c121db7245
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SHA256
d2cc2b6ba20f79d6fcb9c05d24b99d492ae1f4c6d12fe836e5aa05f32bb68beb
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SHA512
2f851d6e3cfeb1297886927d9cf964a388df9e3969fabd62f9f6849db7cf8467f139c791679f2aa9ee37a5a68ca9cd2f8a7aba6f70f100d7aff0ecb23d8800bd
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.rezuit.pro - Port:
587 - Username:
[email protected] - Password:
grace1234
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1816-61-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1816-64-0x000000000045482E-mapping.dmp family_agenttesla behavioral1/memory/1816-62-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1816-63-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1816-66-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral1/memory/1816-68-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
2001016641..exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2001016641..exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2001016641..exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2001016641..exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2001016641..exedescription pid process target process PID 964 set thread context of 1816 964 2001016641..exe 2001016641..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 7 IoCs
Processes:
2001016641..exe2001016641..exepid process 964 2001016641..exe 964 2001016641..exe 964 2001016641..exe 964 2001016641..exe 964 2001016641..exe 1816 2001016641..exe 1816 2001016641..exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
2001016641..exe2001016641..exedescription pid process Token: SeDebugPrivilege 964 2001016641..exe Token: SeDebugPrivilege 1816 2001016641..exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
2001016641..exedescription pid process target process PID 964 wrote to memory of 1328 964 2001016641..exe schtasks.exe PID 964 wrote to memory of 1328 964 2001016641..exe schtasks.exe PID 964 wrote to memory of 1328 964 2001016641..exe schtasks.exe PID 964 wrote to memory of 1328 964 2001016641..exe schtasks.exe PID 964 wrote to memory of 1112 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1112 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1112 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1112 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1976 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1976 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1976 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1976 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1972 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1972 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1972 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1972 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe PID 964 wrote to memory of 1816 964 2001016641..exe 2001016641..exe -
outlook_office_path 1 IoCs
Processes:
2001016641..exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2001016641..exe -
outlook_win_path 1 IoCs
Processes:
2001016641..exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2001016641..exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2001016641..exe"C:\Users\Admin\AppData\Local\Temp\2001016641..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\AQTZrvQoByJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41E1.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\2001016641..exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\2001016641..exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\2001016641..exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\2001016641..exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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\tmp41E1.tmpFilesize
1KB
MD50d7bd00b7e9115a2f5230a47c55e7b53
SHA19d8d2a669e55aaee424f0d6904b836ea6827a5ff
SHA256fc0ace31e75f78238aef20fde462d5a5d7e5a0228c89a49e7aba9fccd13b3c9b
SHA512fbfcaff31bbb8722754632e6805af0bd02b3c79ab8ed733bfe6c31961e0d84029d4b6c00608e20de5d5c74690c121ec391d569873efd938a8752d0da7a863302
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memory/964-54-0x00000000753B1000-0x00000000753B3000-memory.dmpFilesize
8KB
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memory/964-55-0x0000000074460000-0x0000000074A0B000-memory.dmpFilesize
5.7MB
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memory/1328-56-0x0000000000000000-mapping.dmp
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memory/1816-61-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-59-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-58-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-64-0x000000000045482E-mapping.dmp
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memory/1816-62-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-63-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-66-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-68-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/1816-70-0x0000000073EB0000-0x000000007445B000-memory.dmpFilesize
5.7MB