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03/01/2025, 23:07
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250103-pmhvhstlhw 10Analysis
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max time kernel
19s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
03/01/2025, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
Invoice Confirmation.exe
Resource
win7-20240729-en
General
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Target
Invoice Confirmation.exe
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Size
810.6MB
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MD5
63395033fc8d13ddd17e74e4bb13d5d6
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SHA1
0a65c313504c8bcac8dc2eec944dd078a71ce384
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SHA256
c322c179201974d21315230539606d1292a9159527f3f2eafa9d6167e8f51ae2
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SHA512
4a1eb33f370ac2ba32bea1af287abe753edfa63e493e9045960303b1990c1cbdb289dd3ebd273ff87ad68b912b4e016877dd3f78b8ed5ce373a3f20b581a0718
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SSDEEP
12288:mIR4R52J+XtyfG+Lzb6C65feSfSecDAMEnLwh8aFfxc1C0rmZdXm8qzd9p2MIR:mIeeJfG+LNzecKiVfaBiHXU9pTI
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot6882044231:AAEdfz6RtcLc5FDAwOwS8UYabnK3tQ7x4bs/
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 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1160 powershell.exe 1136 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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2340 set thread context of 2732 2340 Invoice Confirmation.exe 34 -
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 5 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 Invoice Confirmation.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Invoice Confirmation.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2788 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1160 powershell.exe 1136 powershell.exe 2732 Invoice Confirmation.exe 2732 Invoice Confirmation.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1160 powershell.exe Token: SeDebugPrivilege 1136 powershell.exe Token: SeDebugPrivilege 2732 Invoice Confirmation.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2340 wrote to memory of 1160 2340 Invoice Confirmation.exe 28 PID 2340 wrote to memory of 1160 2340 Invoice Confirmation.exe 28 PID 2340 wrote to memory of 1160 2340 Invoice Confirmation.exe 28 PID 2340 wrote to memory of 1160 2340 Invoice Confirmation.exe 28 PID 2340 wrote to memory of 1136 2340 Invoice Confirmation.exe 30 PID 2340 wrote to memory of 1136 2340 Invoice Confirmation.exe 30 PID 2340 wrote to memory of 1136 2340 Invoice Confirmation.exe 30 PID 2340 wrote to memory of 1136 2340 Invoice Confirmation.exe 30 PID 2340 wrote to memory of 2788 2340 Invoice Confirmation.exe 31 PID 2340 wrote to memory of 2788 2340 Invoice Confirmation.exe 31 PID 2340 wrote to memory of 2788 2340 Invoice Confirmation.exe 31 PID 2340 wrote to memory of 2788 2340 Invoice Confirmation.exe 31 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34 PID 2340 wrote to memory of 2732 2340 Invoice Confirmation.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340 -
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\Invoice Confirmation.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1160
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KmihxwKU.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1136
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmihxwKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp315D.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2788
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C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2732
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58001d1fb518f3c90bb4645493144f276
SHA1430c45c37bc3e5320001775768a0ce80ed991a70
SHA256eb4f0fb5dc0efd8d8c9079af0775b46e49e0dd1286a783096fe6f3190168c538
SHA512c08204b123a6286ac1fd17f6d2519b532a6307a9e85dff327eca47a3222ab55212ca3abee6e6bbaf8522ac89113750eaf1d5ce5f434703f7899d48f108158385
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD51c9df1eca735316dc56c04cb4714285a
SHA1514983c75988b6cb04345acefffc388ac7b50e33
SHA2569a1c9782863a914bf2beea9536781d277202e28e185d40666a202d5aa4a0273a
SHA5121521630bbe8d4057838b57b86392b7bf729aa350281820ddc806298adec1a9231768c8f598e597fed2f1665683e78e81f7f4fe85a3b7751ec9efdb30b07bbd14