Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
19/07/2023, 08:16
Static task
static1
Behavioral task
behavioral1
Sample
Transferencia.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Transferencia.exe
Resource
win10v2004-20230703-en
General
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Target
Transferencia.exe
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Size
624KB
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MD5
6c69b1778096564e9926f9cab8600031
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SHA1
39592861740092bbfe0bcb632b0bc55fbde58ab1
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SHA256
850ce005298ab95b563a50c0b95618d97bc4696e3fffddf12b06c25bf933bfb0
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SHA512
ad501fd2ccf52740dc0c64bef085551f840f926b2f721923016ad0021420d541de2ec4f2298a1ef99715834aa13bf55717c3849f1c48f6da156d95e8c90ff5e4
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SSDEEP
12288:hPYPfY7fsbKjfK9yK2kVM7Ta/UO42LMW2lNDCxNZP:hPYPgwbKjGyK2j6UqMWENDk
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.gamasof.com - Port:
587 - Username:
[email protected] - Password:
Mariana2020* - 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Transferencia.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe" Transferencia.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 62 api.ipify.org 63 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 400 set thread context of 4848 400 Transferencia.exe 97 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4848 Transferencia.exe 4848 Transferencia.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4848 Transferencia.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4848 Transferencia.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 PID 400 wrote to memory of 4848 400 Transferencia.exe 97 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Transferencia.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Transferencia.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:400 -
C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Transferencia.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4848
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5765cff098b629b1eb49e3ef981f7001a
SHA132b7ade1f746d013371141dcebd96e0bb3faeef3
SHA256ee17be860e129795491b4be61f5ac446b16f2679e056114024ffc72b2e23a9b7
SHA512ca2d2ddafc2dcbeab2c93f039bdbc567d4c9e0457e741e71c432b7461a1a8165891f22112ff1b57004ba51271899555fbf001db17d2dc748bafc608817bd9474