Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17/12/2024, 15:40 UTC
Static task
static1
Behavioral task
behavioral1
Sample
comprobante de pago.exe
Resource
win7-20240903-en
General
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Target
comprobante de pago.exe
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Size
2.4MB
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MD5
2be05e23b58f0391fa6ff8f4fd3e4cf2
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SHA1
6016c4770545b024784d39359aa1476b468ff127
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SHA256
d41dac29dbd4d480221a0598ef8a784fcc856f2cca2dae9c8dd38adc01d7ebb8
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SHA512
6753dbc9b858ccbc08c402b21da4b3d43785097f5cfd8e02cb894c4d55735e34e907403737b5a7d183c5fe94bc6a034613cf434c582408ab3ebb22c1067a42de
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SSDEEP
49152:w3ASbdYAm4zEbdYAm4zWbdYAm4z23Ag3AWbdYAm4zSbdYAm4zO3AKBGmhesZjzQ:iA4drWdr0drkASA0dr4dr8AVHsBzQ
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.horeca-bucuresti.ro - Port:
21 - Username:
biggiemma@horeca-bucuresti.ro - Password:
e)rWKbKP8~mO
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2088 set thread context of 2192 2088 comprobante de pago.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 regasm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language comprobante de pago.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2192 regasm.exe 2192 regasm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2088 comprobante de pago.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2192 regasm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2088 comprobante de pago.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30 PID 2088 wrote to memory of 2192 2088 comprobante de pago.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\comprobante de pago.exe"C:\Users\Admin\AppData\Local\Temp\comprobante de pago.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2192
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Network
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Remote address:8.8.8.8:53Requestip-api.comIN AResponseip-api.comIN A208.95.112.1
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Remote address:208.95.112.1:80RequestGET /line/?fields=hosting HTTP/1.1
Host: ip-api.com
Connection: Keep-Alive
ResponseHTTP/1.1 200 OK
Content-Type: text/plain; charset=utf-8
Content-Length: 6
Access-Control-Allow-Origin: *
X-Ttl: 59
X-Rl: 43
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310 B 347 B 5 4
HTTP Request
GET http://ip-api.com/line/?fields=hostingHTTP Response
200