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Analysis
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max time kernel
35s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
27/10/2024, 22:31
Static task
static1
Behavioral task
behavioral1
Sample
RemittanceReceipt.exe
Resource
win7-20241010-en
General
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Target
RemittanceReceipt.exe
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Size
698KB
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MD5
db9a323fde82eac0d972eec0acde0209
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SHA1
88ead16576193df0d647c722d70b79f50300e852
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SHA256
e93171125e897ba3a556f1b0171629d2a9aaa3298510f97b5d7cda44b9c3c313
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SHA512
d22a3073ea9d5c6111e61200521fa9453fc5c5814a4cd64595d5d297c6c5f9d2b5d186d10700728d19087a72c8c392a87797ffe5a48440a42165b095f12204ad
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SSDEEP
12288:KCfiaaMHHsczu6ko6E52x82u6/DsXsW7mbXt8V8XME+L:KYi5MH1z9J2du6LsXGtm8Ra
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.privateemail.com - Port:
587 - Username:
[email protected] - Password:
payment1759 - 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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Agenttesla family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2940 powershell.exe -
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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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 3 api.ipify.org 2 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2424 set thread context of 2508 2424 RemittanceReceipt.exe 31 -
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 3 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 RemittanceReceipt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RemittanceReceipt.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2424 RemittanceReceipt.exe 2424 RemittanceReceipt.exe 2508 RemittanceReceipt.exe 2508 RemittanceReceipt.exe 2940 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2424 RemittanceReceipt.exe Token: SeDebugPrivilege 2508 RemittanceReceipt.exe Token: SeDebugPrivilege 2940 powershell.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2424 wrote to memory of 2940 2424 RemittanceReceipt.exe 29 PID 2424 wrote to memory of 2940 2424 RemittanceReceipt.exe 29 PID 2424 wrote to memory of 2940 2424 RemittanceReceipt.exe 29 PID 2424 wrote to memory of 2940 2424 RemittanceReceipt.exe 29 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31 PID 2424 wrote to memory of 2508 2424 RemittanceReceipt.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\RemittanceReceipt.exe"C:\Users\Admin\AppData\Local\Temp\RemittanceReceipt.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RemittanceReceipt.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2940
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C:\Users\Admin\AppData\Local\Temp\RemittanceReceipt.exe"C:\Users\Admin\AppData\Local\Temp\RemittanceReceipt.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2508
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1