Analysis
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max time kernel
121s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:18
Static task
static1
Behavioral task
behavioral1
Sample
BANK DETAILS.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
BANK DETAILS.exe
Resource
win10v2004-20220414-en
General
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Target
BANK DETAILS.exe
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Size
592KB
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MD5
d8c4f79c53e551b8fc73c4411996d907
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SHA1
99630818dff1e7b6f5ef56b766d70ba12411c5ee
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SHA256
a083e924898a75762310530246d06bdadd4507aa660a62a9e5913c7862ba0152
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SHA512
e8351ebbe95efb29b5207960436dd27ec913d6eeafe16f7a59131a7e9ecb6c56bc1f29ea15376d975d1a7a6c236d6fadaeddae970f86923dd7c38ca317452cb6
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.pptoursperu.com - Port:
587 - Username:
[email protected] - Password:
mailppt2019-
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2680-136-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
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 -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
BANK DETAILS.exedescription pid process target process PID 3812 set thread context of 2680 3812 BANK DETAILS.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4548 2680 WerFault.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 2680 RegSvcs.exe 2680 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 2680 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
BANK DETAILS.exeRegSvcs.exedescription pid process target process PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 3812 wrote to memory of 2680 3812 BANK DETAILS.exe RegSvcs.exe PID 2680 wrote to memory of 1804 2680 RegSvcs.exe REG.exe PID 2680 wrote to memory of 1804 2680 RegSvcs.exe REG.exe PID 2680 wrote to memory of 1804 2680 RegSvcs.exe REG.exe PID 2680 wrote to memory of 4772 2680 RegSvcs.exe netsh.exe PID 2680 wrote to memory of 4772 2680 RegSvcs.exe netsh.exe PID 2680 wrote to memory of 4772 2680 RegSvcs.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\BANK DETAILS.exe"C:\Users\Admin\AppData\Local\Temp\BANK DETAILS.exe"1⤵
- Suspicious use of SetThreadContext
- 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
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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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 2680 -s 15803⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2680 -ip 26801⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1804-138-0x0000000000000000-mapping.dmp
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memory/2680-135-0x0000000000000000-mapping.dmp
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memory/2680-136-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/2680-137-0x0000000006300000-0x0000000006366000-memory.dmpFilesize
408KB
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memory/2680-139-0x0000000006BA0000-0x0000000006BF0000-memory.dmpFilesize
320KB
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memory/3812-130-0x0000000000400000-0x000000000049A000-memory.dmpFilesize
616KB
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memory/3812-131-0x0000000007880000-0x0000000007E24000-memory.dmpFilesize
5.6MB
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memory/3812-132-0x0000000007370000-0x0000000007402000-memory.dmpFilesize
584KB
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memory/3812-133-0x0000000007300000-0x000000000730A000-memory.dmpFilesize
40KB
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memory/3812-134-0x000000000AEF0000-0x000000000AF8C000-memory.dmpFilesize
624KB
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memory/4772-140-0x0000000000000000-mapping.dmp