Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
21-05-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE ORDER.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
PURCHASE ORDER.exe
Resource
win10v2004-20240226-en
General
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Target
PURCHASE ORDER.exe
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Size
828KB
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MD5
8af5abb19bc5fcd7d8e7c7c930707e68
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SHA1
bc9724ebbdfc9f248a427c0bbe119a5d144c4fa1
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SHA256
25192b6de0b0ec0c8647deee54f87f54c6c122496a601cffbaa9fad85168af62
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SHA512
7cc597bb80e502eebd872f25f218f63b88ade93c81a5eca97bc960de04ade2e218c7cdb2eaf1fff7b08005cd4ae3846761de62def4cb7d8d3ac816b32c66582e
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SSDEEP
12288:OIQWET/mr9K+22BEEzFatnHbcmWSK86jENTkV0E+YfVZScyqg08kfl2aWUnTPea8:QWtb3BEVHC86YTkVVOkfl/beaooN5v8
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
Password: D4v_8+edvC?l. . - 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 2620 powershell.exe 2720 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:
PURCHASE ORDER.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\mpTrle = "C:\\Users\\Admin\\AppData\\Roaming\\mpTrle\\mpTrle.exe" PURCHASE ORDER.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 2 api.ipify.org 3 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PURCHASE ORDER.exedescription pid process target process PID 348 set thread context of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.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 10 IoCs
Processes:
PURCHASE ORDER.exePURCHASE ORDER.exepowershell.exepowershell.exepid process 348 PURCHASE ORDER.exe 348 PURCHASE ORDER.exe 348 PURCHASE ORDER.exe 348 PURCHASE ORDER.exe 348 PURCHASE ORDER.exe 348 PURCHASE ORDER.exe 2492 PURCHASE ORDER.exe 2492 PURCHASE ORDER.exe 2620 powershell.exe 2720 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
PURCHASE ORDER.exePURCHASE ORDER.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 348 PURCHASE ORDER.exe Token: SeDebugPrivilege 2492 PURCHASE ORDER.exe Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 2720 powershell.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
PURCHASE ORDER.exedescription pid process target process PID 348 wrote to memory of 2620 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2620 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2620 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2620 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2720 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2720 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2720 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2720 348 PURCHASE ORDER.exe powershell.exe PID 348 wrote to memory of 2648 348 PURCHASE ORDER.exe schtasks.exe PID 348 wrote to memory of 2648 348 PURCHASE ORDER.exe schtasks.exe PID 348 wrote to memory of 2648 348 PURCHASE ORDER.exe schtasks.exe PID 348 wrote to memory of 2648 348 PURCHASE ORDER.exe schtasks.exe PID 348 wrote to memory of 2756 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2756 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2756 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2756 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2548 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2548 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2548 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2548 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 348 wrote to memory of 2492 348 PURCHASE ORDER.exe PURCHASE ORDER.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:348 -
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\PURCHASE ORDER.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2620
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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\gmTKQwj.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2720
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gmTKQwj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D10.tmp"2⤵
- Creates scheduled task(s)
PID:2648
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"2⤵PID:2756
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"2⤵PID:2548
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2492
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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
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD51dae12bfad06913be6e2caf46500b1f5
SHA1f5cfc54fd3a198bb0bcf5039fd0e320b255964d1
SHA256b7ab190035155516f28b622f3c6fd4e5e16cf3b7224e9df7b301daa12d667fa1
SHA512e9d25b6c29e75619b9e251b973cdc9d9f199e6cf22e0501d8669b0be26fbfc8312eb2ad07d2d6e1b5b149763205ce64bdfc681c61b47d032941c6a8ae0c2fb95
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize7KB
MD5ad7d8e9d3ce978ca531000b494ccdf3d
SHA1be788065f84238efe688f3c028fbddfda5bff906
SHA25651c0086a92772885099f71b1ae5f193fefea90087cb61ab61573fb7ec62e56e1
SHA512ea17fc011784e97e731562845f1090ac5cf87ae820cc5c92e9858ae9f3463b412165c11b7818ef6751f7daf1eb08e14f8dd3dc95fcdaab23fe75beede800ea54