Analysis
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max time kernel
152s -
max time network
163s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 14:41
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order......21-11-22.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
Purchase Order......21-11-22.exe
Resource
win10v2004-20221111-en
General
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Target
Purchase Order......21-11-22.exe
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Size
718KB
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MD5
34b26dab00fad0c5d70277e58cb0b546
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SHA1
7af5c0c05fc740c7dfa410235b6781c2f08bd996
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SHA256
b1614082023a76f25d59eee39a1fc2377d7b678e5c6ad7d451f0477b374d6660
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SHA512
ceb27d8fb939418e5b09a3e3897f93357b0404fcc8be385522494ec8d46aa14a933fdd293522c0ef50caf40d756bcc8fef95a0ec530ea40a4b3849558a2ce045
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SSDEEP
12288:6PMsbBtXrT1rAChzf0y/lqwVaG/TTcrmvPd3FRu+fTbML+mxh+4NPBW4/nuisOLw:21rbhzfDtqAbbT3vY+fDmxhFggux+L7m
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5467926675:AAHl4rZuFMBsQAWPk1ynhSWYCGcDxYqlg7g/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Purchase Order......21-11-22.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation Purchase Order......21-11-22.exe -
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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
Purchase Order......21-11-22.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order......21-11-22.exe Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order......21-11-22.exe Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order......21-11-22.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Purchase Order......21-11-22.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eKHxmGJ = "C:\\Users\\Admin\\AppData\\Roaming\\eKHxmGJ\\eKHxmGJ.exe" Purchase Order......21-11-22.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase Order......21-11-22.exedescription pid process target process PID 2028 set thread context of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
Purchase Order......21-11-22.exepowershell.exePurchase Order......21-11-22.exepid process 2028 Purchase Order......21-11-22.exe 2028 Purchase Order......21-11-22.exe 3356 powershell.exe 1848 Purchase Order......21-11-22.exe 1848 Purchase Order......21-11-22.exe 3356 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Purchase Order......21-11-22.exepowershell.exePurchase Order......21-11-22.exedescription pid process Token: SeDebugPrivilege 2028 Purchase Order......21-11-22.exe Token: SeDebugPrivilege 3356 powershell.exe Token: SeDebugPrivilege 1848 Purchase Order......21-11-22.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Purchase Order......21-11-22.exepid process 1848 Purchase Order......21-11-22.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Purchase Order......21-11-22.exedescription pid process target process PID 2028 wrote to memory of 3356 2028 Purchase Order......21-11-22.exe powershell.exe PID 2028 wrote to memory of 3356 2028 Purchase Order......21-11-22.exe powershell.exe PID 2028 wrote to memory of 3356 2028 Purchase Order......21-11-22.exe powershell.exe PID 2028 wrote to memory of 952 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 952 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 952 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe PID 2028 wrote to memory of 1848 2028 Purchase Order......21-11-22.exe Purchase Order......21-11-22.exe -
outlook_office_path 1 IoCs
Processes:
Purchase Order......21-11-22.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order......21-11-22.exe -
outlook_win_path 1 IoCs
Processes:
Purchase Order......21-11-22.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order......21-11-22.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028 -
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......21-11-22.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3356 -
C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"2⤵PID:952
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C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order......21-11-22.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1848