Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-10-2024 01:32
Static task
static1
Behavioral task
behavioral1
Sample
5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe
Resource
win10v2004-20240802-en
General
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Target
5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe
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Size
1.1MB
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MD5
231e4c689b7b4a7b7ddd4aa4cefb8c25
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SHA1
b0dc66891fdf5dd51524a9dd8a1272f34830d851
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SHA256
5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d
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SHA512
6e3999f67085b1b5ef2600f4e041eaaa138e087e7d140d7e6e27b97e8915cfd8b131a136f708c67837ad430c51535f9b9c769b9acca4c300a93cd54048235131
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SSDEEP
12288:ULkcoxg7v3qnC11ErwIhh0F4qwUgUny5QNrJqBgqbMADUCBEX0t+rYHWlcuoyFhv:KfmMv6Ckr7Mny5QtYSbJCiXeVZiGPxE
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.starmech.net - Port:
587 - Username:
[email protected] - Password:
nics123 - 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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe" RegSvcs.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 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2136 set thread context of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2280 RegSvcs.exe 2280 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2280 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2280 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28 PID 2136 wrote to memory of 2280 2136 5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe"C:\Users\Admin\AppData\Local\Temp\5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2136 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\5f9a7f6a183b3966e84173f3ea7fec1ed563e9cd08577d87d523d9f69f66eb8d.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2280
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