Analysis
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max time kernel
81s -
max time network
6s -
platform
windows7_x64 -
resource
win7 -
submitted
07-07-2020 09:16
Static task
static1
Behavioral task
behavioral1
Sample
Document_BT24PDF.exe
Resource
win7
Behavioral task
behavioral2
Sample
Document_BT24PDF.exe
Resource
win10v200430
General
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Target
Document_BT24PDF.exe
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Size
708KB
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MD5
24dfb53577948ba7815cf68c40faaac6
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SHA1
9eeee3569616d5f1ecf9ebbd288f1f635b4819b9
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SHA256
68a9e2865afa7d982775ae96d054e37d6931f5cd79ff45841526bba1b6e285ae
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SHA512
717e6eb6c4d07ed2eb6f2f44cc0641cb012ed532789d87b01e3f34491928bd400acf63cb1806a6063d5250a76ca919c21ebe2a09f3f0f572387c7cba559f0e73
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.solarcenter.ro/ - Port:
21 - Username:
[email protected] - Password:
RSv%AL{k~wATNN@ossyguru@00998877
Protocol: ftp- Host:
ftp://ftp.solarcenter.ro/ - Port:
21 - Username:
[email protected] - Password:
RSv%AL{k~wATNN@ossyguru@00998877
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1452-4-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1452-5-0x000000000044C87E-mapping.dmp family_agenttesla behavioral1/memory/1452-7-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1452-8-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla -
Executes dropped EXE 1 IoCs
Processes:
RegAsm.exepid Process 1452 RegAsm.exe -
Loads dropped DLL 2 IoCs
Processes:
Document_BT24PDF.exeRegAsm.exepid Process 1108 Document_BT24PDF.exe 1452 RegAsm.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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Suspicious use of SetThreadContext 1 IoCs
Processes:
Document_BT24PDF.exedescription pid Process procid_target PID 1108 set thread context of 1452 1108 Document_BT24PDF.exe 24 -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
Document_BT24PDF.exeRegAsm.exepid Process 1108 Document_BT24PDF.exe 1108 Document_BT24PDF.exe 1108 Document_BT24PDF.exe 1452 RegAsm.exe 1452 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Document_BT24PDF.exeRegAsm.exedescription pid Process Token: SeDebugPrivilege 1108 Document_BT24PDF.exe Token: SeDebugPrivilege 1452 RegAsm.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
Document_BT24PDF.exeRegAsm.exedescription pid Process procid_target PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1108 wrote to memory of 1452 1108 Document_BT24PDF.exe 24 PID 1452 wrote to memory of 1540 1452 RegAsm.exe 28 PID 1452 wrote to memory of 1540 1452 RegAsm.exe 28 PID 1452 wrote to memory of 1540 1452 RegAsm.exe 28 PID 1452 wrote to memory of 1540 1452 RegAsm.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe"C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1452 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:1540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
b58b926c3574d28d5b7fdd2ca3ec30d5
SHA1d260c4ffd603a9cfc057fcb83d678b1cecdf86f9
SHA2566e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
SHA512b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab
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MD5
b58b926c3574d28d5b7fdd2ca3ec30d5
SHA1d260c4ffd603a9cfc057fcb83d678b1cecdf86f9
SHA2566e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
SHA512b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab
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MD5
b58b926c3574d28d5b7fdd2ca3ec30d5
SHA1d260c4ffd603a9cfc057fcb83d678b1cecdf86f9
SHA2566e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
SHA512b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab
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MD5
b58b926c3574d28d5b7fdd2ca3ec30d5
SHA1d260c4ffd603a9cfc057fcb83d678b1cecdf86f9
SHA2566e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
SHA512b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab