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Analysis
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max time kernel
117s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
12/09/2024, 12:59
Static task
static1
Behavioral task
behavioral1
Sample
wVkmtCHYDeKta2s.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
wVkmtCHYDeKta2s.exe
Resource
win10v2004-20240802-en
General
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Target
wVkmtCHYDeKta2s.exe
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Size
647KB
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MD5
ed56f1f63bede710564b9c1705ae19d6
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SHA1
41a652e5971702f9752f54b5b881ac3f3eaa5b3e
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SHA256
0524648bbc63e29d24fefedcffbad9de84a0ff616e6a7e46d0d5476f14c4b092
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SHA512
02272ec09afafe86c4aca63a049757198d35bcdc6c709be41fe5803c9a3f1d126757cd04db67fc3319142cd6e63be180d0d29f6d57f15b765097f5dfe304bd47
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SSDEEP
12288:t0ELRFpOfFjBYQm9BejL9mDF/htZLQHTuxNhrXtXHwr:jLRFpOfFjBYQm9UYthDoa3r9g
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
%qroUozO;(C2Rlyb - 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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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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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 2316 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 2 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 2272 set thread context of 548 2272 wVkmtCHYDeKta2s.exe 33 -
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 wVkmtCHYDeKta2s.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wVkmtCHYDeKta2s.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 548 wVkmtCHYDeKta2s.exe 548 wVkmtCHYDeKta2s.exe 2316 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 548 wVkmtCHYDeKta2s.exe Token: SeDebugPrivilege 2316 powershell.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2272 wrote to memory of 2316 2272 wVkmtCHYDeKta2s.exe 31 PID 2272 wrote to memory of 2316 2272 wVkmtCHYDeKta2s.exe 31 PID 2272 wrote to memory of 2316 2272 wVkmtCHYDeKta2s.exe 31 PID 2272 wrote to memory of 2316 2272 wVkmtCHYDeKta2s.exe 31 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33 PID 2272 wrote to memory of 548 2272 wVkmtCHYDeKta2s.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\wVkmtCHYDeKta2s.exe"C:\Users\Admin\AppData\Local\Temp\wVkmtCHYDeKta2s.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272 -
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\wVkmtCHYDeKta2s.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2316
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C:\Users\Admin\AppData\Local\Temp\wVkmtCHYDeKta2s.exe"C:\Users\Admin\AppData\Local\Temp\wVkmtCHYDeKta2s.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:548
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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