Analysis
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max time kernel
98s -
max time network
194s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03-10-2022 07:52
Static task
static1
Behavioral task
behavioral1
Sample
vbc.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
vbc.exe
Resource
win10v2004-20220812-en
General
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Target
vbc.exe
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Size
523KB
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MD5
53b9e0fde66e12f4fed9b8387552e1d2
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SHA1
bab7a3747119c6a157798bdd1113940d50071cd7
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SHA256
d2bfb8991bcbbae16022097161db1188c7f3ad19bdebe029fbfe803afad45f63
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SHA512
e42403f031086c39bd1024619a7296260a350537f80aa20e4a136165e20504f6e1aaf375c887dac78325ef21fd1de2dd74507fd95bd4a5b37147672cb1b03ca3
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SSDEEP
12288:yL5b2iN5ce0gNstVxuGJHHyp6Eh3CqAs3E:uh1TcZptSsHMG
Malware Config
Extracted
Protocol: smtp- Host:
mail.eyeshop.co.za - Port:
587 - Username:
reynoridge@eyeshop.co.za - Password:
eyeS@p0
Extracted
agenttesla
Protocol: smtp- Host:
mail.eyeshop.co.za - Port:
587 - Username:
reynoridge@eyeshop.co.za - Password:
eyeS@p0 - Email To:
xqalloys@gmail.com
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Drops file in Drivers directory 1 IoCs
Processes:
vbc.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts vbc.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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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
vbc.exedescription pid process target process PID 976 set thread context of 1452 976 vbc.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vbc.exepid process 1452 vbc.exe 1452 vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
vbc.exedescription pid process Token: SeDebugPrivilege 1452 vbc.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
vbc.exedescription pid process target process PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe PID 976 wrote to memory of 1452 976 vbc.exe vbc.exe -
outlook_office_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vbc.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/976-54-0x0000000000F40000-0x0000000000FC8000-memory.dmpFilesize
544KB
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memory/976-55-0x00000000756B1000-0x00000000756B3000-memory.dmpFilesize
8KB
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memory/976-56-0x0000000000510000-0x0000000000530000-memory.dmpFilesize
128KB
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memory/976-57-0x0000000005520000-0x000000000559A000-memory.dmpFilesize
488KB
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memory/976-58-0x0000000000A60000-0x0000000000A9A000-memory.dmpFilesize
232KB
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memory/1452-59-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-63-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-62-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-60-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-64-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-65-0x0000000000435D2E-mapping.dmp
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memory/1452-67-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/1452-69-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB