Analysis
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max time kernel
119s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
04-10-2023 06:42
Static task
static1
Behavioral task
behavioral1
Sample
unvp.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
unvp.exe
Resource
win10v2004-20230915-en
General
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Target
unvp.exe
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Size
628KB
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MD5
60e0cb2dda65e61f07b78667b34ecbd2
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SHA1
4f974ad07111c0cf5082cb1fa039ed7718f4d6b0
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SHA256
26a294c50930c0cd9fbed08dd7fb63ea59bd2300eed46c452de0b4c5f7b95309
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SHA512
765704d47c86fbb46b184b39cf7aefcd69123f5284c416276e3d93dc9fe0f9ca7d868c8e88261122a93d8915a2cb7d403479fcd087f5cf28ccc15ed15c3a5c0b
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SSDEEP
12288:lJ0yXuN/VvbwTDgbLOtG7YaehgZHLWl5EHCNumB0s:z0EAdvEgelaeSHRy
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 unvp.exe Key opened \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 unvp.exe Key opened \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 unvp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows\CurrentVersion\Run\sOFvE = "C:\\Users\\Admin\\AppData\\Roaming\\sOFvE\\sOFvE.exe" unvp.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.
flow ioc 5 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2068 set thread context of 2816 2068 unvp.exe 35 -
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.
pid Process 2636 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2068 unvp.exe 2068 unvp.exe 2068 unvp.exe 2068 unvp.exe 1992 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2068 unvp.exe Token: SeDebugPrivilege 2816 unvp.exe Token: SeDebugPrivilege 1992 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2068 wrote to memory of 1992 2068 unvp.exe 30 PID 2068 wrote to memory of 1992 2068 unvp.exe 30 PID 2068 wrote to memory of 1992 2068 unvp.exe 30 PID 2068 wrote to memory of 1992 2068 unvp.exe 30 PID 2068 wrote to memory of 2636 2068 unvp.exe 32 PID 2068 wrote to memory of 2636 2068 unvp.exe 32 PID 2068 wrote to memory of 2636 2068 unvp.exe 32 PID 2068 wrote to memory of 2636 2068 unvp.exe 32 PID 2068 wrote to memory of 2536 2068 unvp.exe 34 PID 2068 wrote to memory of 2536 2068 unvp.exe 34 PID 2068 wrote to memory of 2536 2068 unvp.exe 34 PID 2068 wrote to memory of 2536 2068 unvp.exe 34 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 PID 2068 wrote to memory of 2816 2068 unvp.exe 35 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 unvp.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 unvp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\unvp.exe"C:\Users\Admin\AppData\Local\Temp\unvp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vgOtIQtcOdo.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1992
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vgOtIQtcOdo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB23.tmp"2⤵
- Creates scheduled task(s)
PID:2636
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C:\Users\Admin\AppData\Local\Temp\unvp.exe"C:\Users\Admin\AppData\Local\Temp\unvp.exe"2⤵PID:2536
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C:\Users\Admin\AppData\Local\Temp\unvp.exe"C:\Users\Admin\AppData\Local\Temp\unvp.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5a287b09146b692726e37a769c69c2a15
SHA109dbd738699d14ce908e4935f756d92a7603ee9c
SHA25629b0cd74e93a446f64cffaf97c881bcba98126cae29ffd45c912c2800ad1a489
SHA512c2b23e725b96761b7095b1a589ad2a7af4f9fed880f5a94f7e6c98aae80823253d069ef3961c0653855f5e8cd764bd8d7d473e5296ea01ce3ad5cb3406b173a1