Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2025 01:33
Static task
static1
Behavioral task
behavioral1
Sample
Holiday#3021.exe
Resource
win7-20240903-en
General
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Target
Holiday#3021.exe
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Size
103KB
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MD5
d94c4aad05654b76b8b2624808355886
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SHA1
f3c7911d8834836c22d78da8ae22e790ccd1429d
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SHA256
337d1f05a3bf83d7a42309f5155edaa070c4ba7219cec3346d98631af0cfb4a5
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SHA512
de80c7528d00e618a5071b93ccaf86cc697df6219f9e5adb4036aff163a9e87b88a461a8a36adecda1eebefd52d97630ac6d777c8c7a127759e2ea46938e0896
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SSDEEP
768:79tVmtzb9+Os5hidy/vn61YPkAbBfmFdEugpWWF2zIV9XeS+ST6nkAv:BtVH7DidIkVFdvD0iIC/m8
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 3744 created 3592 3744 Holiday#3021.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ilsucsfth.vbs Holiday#3021.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 22 api.ipify.org 23 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3744 set thread context of 4684 3744 Holiday#3021.exe 97 -
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 Holiday#3021.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 3744 Holiday#3021.exe 3744 Holiday#3021.exe 3744 Holiday#3021.exe 4684 InstallUtil.exe 4684 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3744 Holiday#3021.exe Token: SeDebugPrivilege 3744 Holiday#3021.exe Token: SeDebugPrivilege 4684 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97 PID 3744 wrote to memory of 4684 3744 Holiday#3021.exe 97
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3592
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C:\Users\Admin\AppData\Local\Temp\Holiday#3021.exe"C:\Users\Admin\AppData\Local\Temp\Holiday#3021.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:3744
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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:4684
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