Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
09-10-2024 10:56
Static task
static1
Behavioral task
behavioral1
Sample
COTIZACIÓN#08673.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
COTIZACIÓN#08673.exe
Resource
win10v2004-20241007-en
General
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Target
COTIZACIÓN#08673.exe
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Size
1.3MB
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MD5
b6b094b48e6bb079ca0e1f42d145baff
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SHA1
f565ba1bf316db46ce939176ae13d94bcd2c2999
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SHA256
078af4066128653bbfceb25b010713cfbdec2582533040e62c03a4638ca4ca9d
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SHA512
64f187fe0fb71e4b7e239ff2c6fb96d11d8b52c8f85bdbc951fefb7ce064ff4bf7c0492476be6f13f83011496844b7cac1924b4796f9f1310443b3266366122f
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SSDEEP
24576:/8V74TIvF31QRutLW/Nye+NuiiySewAIynNyFZQvww:kZ46FoPMNTtzTnNyv
Malware Config
Extracted
Protocol: ftp- Host:
ftp.ercolina-usa.com - Port:
21 - Username:
[email protected] - Password:
uy,o#mZj8$lY
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.ercolina-usa.com - Port:
21 - Username:
[email protected] - Password:
uy,o#mZj8$lY
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 3 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 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe" COTIZACIÓN#08673.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 2704 set thread context of 808 2704 COTIZACIÓN#08673.exe 30 -
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 COTIZACIÓN#08673.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language COTIZACIÓN#08673.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2704 COTIZACIÓN#08673.exe 2704 COTIZACIÓN#08673.exe 2704 COTIZACIÓN#08673.exe 808 COTIZACIÓN#08673.exe 808 COTIZACIÓN#08673.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2704 COTIZACIÓN#08673.exe Token: SeDebugPrivilege 808 COTIZACIÓN#08673.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 808 COTIZACIÓN#08673.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30 PID 2704 wrote to memory of 808 2704 COTIZACIÓN#08673.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN#08673.exe"C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN#08673.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704 -
C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN#08673.exe"C:\Users\Admin\AppData\Local\Temp\COTIZACIÓN#08673.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:808
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1