Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 03:43
Static task
static1
Behavioral task
behavioral1
Sample
PO00211.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
PO00211.exe
Resource
win10v2004-20240508-en
General
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Target
PO00211.exe
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Size
670KB
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MD5
2b12a266317f002c205011fa1958072c
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SHA1
07e6859611698f37aa9c4011f76907aafe524218
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SHA256
dff297acb567f990471dca2871adee15229e572c35fef5fd20eb9a1428946c04
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SHA512
444f0444202f3c4c67cdf3deeb479233041edd4d7a16c0240b729173b5781322278d21abb9e55eb09668795e1121a77ea9ffd11735823a08b109f064969f67b8
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SSDEEP
12288:J0FJzi8LkpEaAxx1Qy0+9+WTehgXkWP3DdFsOFHplgCIQlHzWH4jdmeO1W+TLTuU:KT2jE3LS7+99fXxP3DdFnFJ2CIQBgcdO
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.activefreightpak.com - Port:
587 - Username:
[email protected] - Password:
AFSPL**77** - 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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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.
Processes:
powershell.exepowershell.exepid process 3044 powershell.exe 2880 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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PO00211.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\bnFClsT = "C:\\Users\\Admin\\AppData\\Roaming\\bnFClsT\\bnFClsT.exe" PO00211.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.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO00211.exedescription pid process target process PID 2216 set thread context of 2436 2216 PO00211.exe PO00211.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
PO00211.exePO00211.exepowershell.exepowershell.exepid process 2216 PO00211.exe 2216 PO00211.exe 2436 PO00211.exe 2436 PO00211.exe 2880 powershell.exe 3044 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
PO00211.exePO00211.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2216 PO00211.exe Token: SeDebugPrivilege 2436 PO00211.exe Token: SeDebugPrivilege 2880 powershell.exe Token: SeDebugPrivilege 3044 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO00211.exepid process 2436 PO00211.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
PO00211.exedescription pid process target process PID 2216 wrote to memory of 3044 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 3044 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 3044 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 3044 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 2880 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 2880 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 2880 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 2880 2216 PO00211.exe powershell.exe PID 2216 wrote to memory of 2648 2216 PO00211.exe schtasks.exe PID 2216 wrote to memory of 2648 2216 PO00211.exe schtasks.exe PID 2216 wrote to memory of 2648 2216 PO00211.exe schtasks.exe PID 2216 wrote to memory of 2648 2216 PO00211.exe schtasks.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe PID 2216 wrote to memory of 2436 2216 PO00211.exe PO00211.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO00211.exe"C:\Users\Admin\AppData\Local\Temp\PO00211.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2216 -
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\PO00211.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3044 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eeOuEr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2880 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eeOuEr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp400C.tmp"2⤵
- Creates scheduled task(s)
PID:2648 -
C:\Users\Admin\AppData\Local\Temp\PO00211.exe"C:\Users\Admin\AppData\Local\Temp\PO00211.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2436
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
1KB
MD5e809d2cda61370e84576c87056c7fd36
SHA1e945f6bb3ef0ac7be218cc0e17775df94f529315
SHA256a754014c45ba7c7db38faf214a41200758dbe8267b92047961156569ba68be94
SHA5120bb8c49940d5cc15b0d11c75f444f72ea08dbd72a569c1fc1ed2894d2eb60298ad6e45feb103c2d02884e30a7a7a5fab39c0d2c53ad81b41a117d25d6d81729e
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD562dd5436ad3b4477b6aaa5418bde097f
SHA187658353c8b4f2dda369a7ea5477176b67ffbf7f
SHA25634a14c22394c61f8d9091a0a7da3a68ffe05f2caf1571bc1c38c1870207035ba
SHA5122e58935637d78e42e4e3875e919ac8587509aabd3b70fc7e5ac8153212ac8cfb236ee7b78b7a7289bdcfaf6540041409d1e3ca99cb6fe48e0f311af47415479f