Analysis
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max time kernel
117s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
05-12-2023 13:35
Static task
static1
Behavioral task
behavioral1
Sample
Revise copy.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
Revise copy.exe
Resource
win10v2004-20231130-en
General
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Target
Revise copy.exe
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Size
650KB
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MD5
c64c2a89d124e9185d312b3f880b31d9
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SHA1
cb98b08b3954f8c596762a9d571006bc077612e0
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SHA256
8dd68257e8d07b2e0d25da886cdb7cb487085b99a469984369d486812596ea12
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SHA512
92c0be639e432691a58c220e015987f77755703c4f936480befd3c035ff4386ad20734a936d21921c3fc5bfa3cc4e1be6288756fc24e10147305621d34bbb472
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SSDEEP
12288:iq5nF8ME6jD/GYVZBzN0SeawOHlB+GrgetMtZeF3KKprWeb25LfYOghi:iqPtD/Gez03awaDrgeWtZeNr6eaLQOu
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
kV$bSqJ1 daniel - 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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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
Revise copy.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Revise copy.exe Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Revise copy.exe Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Revise copy.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Revise copy.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\sOFvE = "C:\\Users\\Admin\\AppData\\Roaming\\sOFvE\\sOFvE.exe" Revise copy.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:
Revise copy.exedescription pid process target process PID 1724 set thread context of 2692 1724 Revise copy.exe Revise copy.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 3 IoCs
Processes:
Revise copy.exepowershell.exepid process 1724 Revise copy.exe 1724 Revise copy.exe 2640 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
Revise copy.exeRevise copy.exepowershell.exedescription pid process Token: SeDebugPrivilege 1724 Revise copy.exe Token: SeDebugPrivilege 2692 Revise copy.exe Token: SeDebugPrivilege 2640 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
Revise copy.exedescription pid process target process PID 1724 wrote to memory of 2640 1724 Revise copy.exe powershell.exe PID 1724 wrote to memory of 2640 1724 Revise copy.exe powershell.exe PID 1724 wrote to memory of 2640 1724 Revise copy.exe powershell.exe PID 1724 wrote to memory of 2640 1724 Revise copy.exe powershell.exe PID 1724 wrote to memory of 2732 1724 Revise copy.exe schtasks.exe PID 1724 wrote to memory of 2732 1724 Revise copy.exe schtasks.exe PID 1724 wrote to memory of 2732 1724 Revise copy.exe schtasks.exe PID 1724 wrote to memory of 2732 1724 Revise copy.exe schtasks.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe PID 1724 wrote to memory of 2692 1724 Revise copy.exe Revise copy.exe -
outlook_office_path 1 IoCs
Processes:
Revise copy.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Revise copy.exe -
outlook_win_path 1 IoCs
Processes:
Revise copy.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Revise copy.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yvygyKkUYqKa.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2640 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA63.tmp"2⤵
- Creates scheduled task(s)
PID:2732 -
C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"C:\Users\Admin\AppData\Local\Temp\Revise copy.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD55e828b7c9d49dbbae20bee022a9b7b01
SHA13b771010a852ca7eabaaf70a03ea127015391677
SHA256fcbc3a87d3c67b2418d4a747bc731a82bda8ae4b55864cdc5fe5c5a1dba78918
SHA512bc370c1b470cc1402da43e283c3b611c9985f65e57bb28c57505e807948ce4dde5bebac8676cc47d1559cc3e48ee4a44c49f9877a3ffb7f1dda1519df74cd9b0