Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-12-2024 01:15
Static task
static1
Behavioral task
behavioral1
Sample
Ref#565771.exe
Resource
win7-20240903-en
General
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Target
Ref#565771.exe
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Size
30KB
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MD5
ed236267c78420804814d86de99b8850
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SHA1
21bd6d19e5664158c3d4d77ca3a2b7889827d0d4
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SHA256
fd19e12aebfd870dcc7fe04359e6e7a53daeeb281c2dfc21f7740f8e65edd264
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SHA512
7c28b89d1e7c4c429cc2528cc935839be61a5cb41c621ae48547c7cc64479df6a0254382eaab2fba52af3d4cbf261ccffdfc8d0d40043042bc6cb86f7be7af1a
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SSDEEP
384:GSwPLqusAKYP/GKhwlJCXOxFm7bhCm/zH:xwz9HvK6XiFZKj
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
162.254.34.31 - Port:
587 - Username:
[email protected] - Password:
ABwuRZS5Mjh5 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 4792 created 3520 4792 Ref#565771.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\iulule.vbs Ref#565771.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 24 api.ipify.org 25 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4792 set thread context of 1512 4792 Ref#565771.exe 96 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Ref#565771.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4792 Ref#565771.exe 1512 InstallUtil.exe 1512 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4792 Ref#565771.exe Token: SeDebugPrivilege 4792 Ref#565771.exe Token: SeDebugPrivilege 1512 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96 PID 4792 wrote to memory of 1512 4792 Ref#565771.exe 96
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3520
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C:\Users\Admin\AppData\Local\Temp\Ref#565771.exe"C:\Users\Admin\AppData\Local\Temp\Ref#565771.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4792
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1512
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