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Analysis
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max time kernel
114s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
20/01/2025, 11:54
Static task
static1
Behavioral task
behavioral1
Sample
Ref#2600902.exe
Resource
win7-20240903-en
General
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Target
Ref#2600902.exe
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Size
51KB
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MD5
48d5264b4dca7aa56915e7f378e9ab13
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SHA1
e0e384fb1257c17053cddfc24e6a071de6f99f97
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SHA256
f9ee3715793db624c00bf0f71624c483729719d0dce15b4922b52f7422a420fc
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SHA512
2a3b0b5a0e357217421aa55302d5eea38294a0ad28d9547dafa30fa3f3d01cee6f9588113068f624e5287b4f50d2154123cb83f8f235cb49835f6d11fc9a9e2c
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SSDEEP
384:MQc7UaUMrg7ilYqCndq5I16MjSj67WBTc0bhfefTZ2GShq6ki2lKxiIiW1sQS+SG:PEDrgsCKE01f37F2zInyQS+ST6nkC1
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 1208 created 3368 1208 Ref#2600902.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Current.vbs Ref#2600902.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 18 api.ipify.org 19 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1208 set thread context of 2604 1208 Ref#2600902.exe 87 -
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#2600902.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1208 Ref#2600902.exe 1208 Ref#2600902.exe 1208 Ref#2600902.exe 2604 InstallUtil.exe 2604 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1208 Ref#2600902.exe Token: SeDebugPrivilege 1208 Ref#2600902.exe Token: SeDebugPrivilege 2604 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87 PID 1208 wrote to memory of 2604 1208 Ref#2600902.exe 87
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3368
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C:\Users\Admin\AppData\Local\Temp\Ref#2600902.exe"C:\Users\Admin\AppData\Local\Temp\Ref#2600902.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:1208
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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:2604
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