Analysis
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max time kernel
122s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
01-12-2023 13:58
Static task
static1
Behavioral task
behavioral1
Sample
NEW ORDER--GO23B005--DEC 2023.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEW ORDER--GO23B005--DEC 2023.exe
Resource
win10v2004-20231127-en
General
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Target
NEW ORDER--GO23B005--DEC 2023.exe
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Size
623KB
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MD5
8eab5e4d034fde42eb31add0cb923a97
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SHA1
ac9f5a051227302049aa5136a26f30a3707db55c
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SHA256
1be1eb3fc904fc5a9e9e555e3fa4a2b6a5a299917d5afa9a1570079195387fa3
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SHA512
54f6f28e0ad2ba4cf968fb766d000f97afb851a6886649c7968a39a3e09eff5974455164ba0e43963a1bc5a416b1fabfd6780c55cd794011ea474bd72c2accdb
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SSDEEP
12288:14uUdaP5mn0llWSQSSKJOzIT5HiSRJ56/:ydaP5mn0llNQN2OzCti2z
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.asiaparadisehotel.com - Port:
587 - Username:
[email protected] - Password:
^b2ycDldex$@ - 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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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
NEW ORDER--GO23B005--DEC 2023.exeRegAsm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\Szlaz = "C:\\Users\\Admin\\AppData\\Roaming\\Szlaz.exe" NEW ORDER--GO23B005--DEC 2023.exe Set value (str) \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\TlKsFB = "C:\\Users\\Admin\\AppData\\Roaming\\TlKsFB\\TlKsFB.exe" RegAsm.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.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEW ORDER--GO23B005--DEC 2023.exedescription pid process target process PID 2376 set thread context of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2628 RegAsm.exe 2628 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
NEW ORDER--GO23B005--DEC 2023.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 2376 NEW ORDER--GO23B005--DEC 2023.exe Token: SeDebugPrivilege 2628 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
NEW ORDER--GO23B005--DEC 2023.exedescription pid process target process PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe PID 2376 wrote to memory of 2628 2376 NEW ORDER--GO23B005--DEC 2023.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEW ORDER--GO23B005--DEC 2023.exe"C:\Users\Admin\AppData\Local\Temp\NEW ORDER--GO23B005--DEC 2023.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628