Analysis
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max time kernel
299s -
max time network
314s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
19-10-2021 15:07
Static task
static1
Behavioral task
behavioral1
Sample
quj5eQiH0pvKKhn.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
quj5eQiH0pvKKhn.exe
Resource
win10-en-20211014
General
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Target
quj5eQiH0pvKKhn.exe
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Size
395KB
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MD5
cd9893216c015b03a70d5ed52a7bd7f9
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SHA1
f941ecb689ead0579ab3c6e4a103fe67a5fef0c0
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SHA256
4c606e776efff1f168bb35220f9704826dc425c8f578e61c5923a3586e9da063
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SHA512
f69747f1810c9428bd0d120480f81945934cbbbdab5b5849c9835b6cfb9f61fa2ce258714f33067113339bff02ae433c92a95865eb3b389bba4ee106f8cf866d
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.upgcambodia.com - Port:
587 - Username:
[email protected] - Password:
stock3168
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/564-62-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/564-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/564-64-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/564-65-0x000000000043761E-mapping.dmp family_agenttesla behavioral1/memory/564-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
quj5eQiH0pvKKhn.exedescription pid process target process PID 2044 set thread context of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
quj5eQiH0pvKKhn.exeRegSvcs.exepid process 2044 quj5eQiH0pvKKhn.exe 2044 quj5eQiH0pvKKhn.exe 564 RegSvcs.exe 564 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
quj5eQiH0pvKKhn.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 2044 quj5eQiH0pvKKhn.exe Token: SeDebugPrivilege 564 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
quj5eQiH0pvKKhn.exepid process 2044 quj5eQiH0pvKKhn.exe 2044 quj5eQiH0pvKKhn.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
quj5eQiH0pvKKhn.exedescription pid process target process PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe PID 2044 wrote to memory of 564 2044 quj5eQiH0pvKKhn.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\quj5eQiH0pvKKhn.exe"C:\Users\Admin\AppData\Local\Temp\quj5eQiH0pvKKhn.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/564-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/564-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/564-69-0x0000000004BA1000-0x0000000004BA2000-memory.dmpFilesize
4KB
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memory/564-68-0x0000000004BA0000-0x0000000004BA1000-memory.dmpFilesize
4KB
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memory/564-66-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/564-65-0x000000000043761E-mapping.dmp
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memory/564-61-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/564-62-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/564-60-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/2044-53-0x0000000000CA0000-0x0000000000CA1000-memory.dmpFilesize
4KB
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memory/2044-55-0x0000000000BF0000-0x0000000000BF1000-memory.dmpFilesize
4KB
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memory/2044-59-0x0000000007E20000-0x0000000007E78000-memory.dmpFilesize
352KB
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memory/2044-58-0x0000000000BE0000-0x0000000000BE8000-memory.dmpFilesize
32KB
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memory/2044-57-0x0000000000BF2000-0x0000000000BF3000-memory.dmpFilesize
4KB
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memory/2044-56-0x0000000000BF1000-0x0000000000BF2000-memory.dmpFilesize
4KB