Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
03-10-2024 14:27
Static task
static1
Behavioral task
behavioral1
Sample
PurchaseOrder.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
PurchaseOrder.exe
Resource
win10v2004-20240802-en
General
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Target
PurchaseOrder.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-1-5-21-1506706701-1246725540-2219210854-1000\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 1308 set thread context of 2828 1308 PurchaseOrder.exe 30 -
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 PurchaseOrder.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2828 RegSvcs.exe 2828 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1308 PurchaseOrder.exe 1308 PurchaseOrder.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2828 RegSvcs.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2828 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30 PID 1308 wrote to memory of 2828 1308 PurchaseOrder.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\PurchaseOrder.exe"C:\Users\Admin\AppData\Local\Temp\PurchaseOrder.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\PurchaseOrder.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:2828
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