Analysis
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max time kernel
135s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240319-en -
resource tags
arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system -
submitted
19/03/2024, 22:01
Static task
static1
Behavioral task
behavioral1
Sample
d7366bcee00e2aa26ddea11d2b7d7472.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
d7366bcee00e2aa26ddea11d2b7d7472.exe
Resource
win10v2004-20240226-en
General
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Target
d7366bcee00e2aa26ddea11d2b7d7472.exe
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Size
713KB
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MD5
d7366bcee00e2aa26ddea11d2b7d7472
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SHA1
b72a36ba160f80d398d338785068e6da841c8257
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SHA256
bf88eb4511a5b91350a9d657b5fe620f6d2bf23098b58200cbd1677eb4228cce
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SHA512
94f41906cfa23487d2439187554966f127ba5765478ae962fdddcb30985047dfefcb0b384093b2a0b3f90c4718cf4bcbd65a7d65217f496905dccf950c34829e
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SSDEEP
12288:fik+G8J8QS19c9XRXSOGl6Yql+oiO0o0ABcNCkEkdfdK4ezvnMDpCcFY9fHSmK:f+jJ8/DsHGoplViO0ZCvCnSvnMdfFY9U
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
uscentral50.myserverhosts.com - Port:
587 - Username:
[email protected] - Password:
waters@789
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 7 IoCs
resource yara_rule behavioral1/memory/2924-12-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2924-14-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2924-18-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2924-20-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2924-22-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/2924-25-0x00000000048F0000-0x0000000004930000-memory.dmp family_agenttesla behavioral1/memory/2924-28-0x00000000048F0000-0x0000000004930000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2368 set thread context of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2924 RegSvcs.exe 2924 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2924 RegSvcs.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 PID 2368 wrote to memory of 2924 2368 d7366bcee00e2aa26ddea11d2b7d7472.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d7366bcee00e2aa26ddea11d2b7d7472.exe"C:\Users\Admin\AppData\Local\Temp\d7366bcee00e2aa26ddea11d2b7d7472.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2368 -
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
PID:2924
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