Analysis
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max time kernel
91s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:51
Static task
static1
Behavioral task
behavioral1
Sample
NEW P O.exe
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
NEW P O.exe
Resource
win10v2004-20220414-en
windows10-2004_x64
0 signatures
0 seconds
General
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Target
NEW P O.exe
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Size
482KB
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MD5
d8492d52da3b7fc82bc19b8aca351c63
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SHA1
a368f5ea2903bae4dc521189a09c490a215d7577
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SHA256
e8ea9e32e32ba57db997117b275a571e3d69793663a9e81b4f2df7616b1389b4
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SHA512
79e1ecee0202411b1ce9d3cc15d9eb175206471b194f5ab941ab6c391d19accc1656b03b6aa1e920b20dba2b1fe01f7ff0f91cb63d93a2a0e58d1e98a799f013
Malware Config
Extracted
Family
agenttesla
Credentials
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/224-135-0x0000000000400000-0x0000000000452000-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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEW P O.exedescription pid process target process PID 2208 set thread context of 224 2208 NEW P O.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4948 224 WerFault.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegSvcs.exepid process 224 RegSvcs.exe 224 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeDebugPrivilege 224 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
NEW P O.exeRegSvcs.exedescription pid process target process PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 2208 wrote to memory of 224 2208 NEW P O.exe RegSvcs.exe PID 224 wrote to memory of 4592 224 RegSvcs.exe REG.exe PID 224 wrote to memory of 4592 224 RegSvcs.exe REG.exe PID 224 wrote to memory of 4592 224 RegSvcs.exe REG.exe PID 224 wrote to memory of 3180 224 RegSvcs.exe netsh.exe PID 224 wrote to memory of 3180 224 RegSvcs.exe netsh.exe PID 224 wrote to memory of 3180 224 RegSvcs.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW P O.exe"C:\Users\Admin\AppData\Local\Temp\NEW P O.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
- Adds Run key to start application
- 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 224 -s 15443⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 224 -ip 2241⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/224-134-0x0000000000000000-mapping.dmp
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memory/224-135-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/224-136-0x0000000005600000-0x0000000005666000-memory.dmpFilesize
408KB
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memory/224-139-0x0000000006250000-0x00000000062A0000-memory.dmpFilesize
320KB
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memory/2208-130-0x00000000000F0000-0x000000000016E000-memory.dmpFilesize
504KB
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memory/2208-131-0x0000000004AF0000-0x0000000004B8C000-memory.dmpFilesize
624KB
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memory/2208-132-0x0000000004E80000-0x0000000004F12000-memory.dmpFilesize
584KB
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memory/2208-133-0x0000000005A50000-0x0000000005FF4000-memory.dmpFilesize
5.6MB
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memory/3180-138-0x0000000000000000-mapping.dmp
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memory/4592-137-0x0000000000000000-mapping.dmp