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Analysis
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max time kernel
149s -
max time network
32s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
09/07/2020, 07:39
Static task
static1
Behavioral task
behavioral1
Sample
attached swifts..exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
attached swifts..exe
Resource
win10
General
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Target
attached swifts..exe
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Size
559KB
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MD5
6ae5b3ed0174f1ae431622ced5bcd531
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SHA1
6ea45473611793b785bb7d991ac869f1ef305edd
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SHA256
408cd033f668e95e4e65ea4ef406d63910b7b04158efa491ed704196a2a5063a
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SHA512
9e2aaa3e2bf705faa920a33136991d11e80c265dba8a1bab5384e02edc6e2f56d2285d75a1a55cc42b7d1dbb35f69ca25795aa0d1ea852b50d22d1b7a7902890
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.mexicanproduct.com.mx - Port:
587 - Username:
[email protected] - Password:
Produccion2020.
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
resource yara_rule behavioral1/memory/1768-2-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1768-3-0x000000000044983E-mapping.dmp family_agenttesla behavioral1/memory/1768-4-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1768-5-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla -
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
description pid Process procid_target PID 1016 set thread context of 1768 1016 attached swifts..exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 1372 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1016 attached swifts..exe 1016 attached swifts..exe 1016 attached swifts..exe 1768 attached swifts..exe 1768 attached swifts..exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1016 attached swifts..exe Token: SeDebugPrivilege 1768 attached swifts..exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1768 attached swifts..exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1016 wrote to memory of 1372 1016 attached swifts..exe 26 PID 1016 wrote to memory of 1372 1016 attached swifts..exe 26 PID 1016 wrote to memory of 1372 1016 attached swifts..exe 26 PID 1016 wrote to memory of 1372 1016 attached swifts..exe 26 PID 1016 wrote to memory of 1772 1016 attached swifts..exe 28 PID 1016 wrote to memory of 1772 1016 attached swifts..exe 28 PID 1016 wrote to memory of 1772 1016 attached swifts..exe 28 PID 1016 wrote to memory of 1772 1016 attached swifts..exe 28 PID 1016 wrote to memory of 1784 1016 attached swifts..exe 29 PID 1016 wrote to memory of 1784 1016 attached swifts..exe 29 PID 1016 wrote to memory of 1784 1016 attached swifts..exe 29 PID 1016 wrote to memory of 1784 1016 attached swifts..exe 29 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30 PID 1016 wrote to memory of 1768 1016 attached swifts..exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\attached swifts..exe"C:\Users\Admin\AppData\Local\Temp\attached swifts..exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fFcpdhem" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8130.tmp"2⤵
- Creates scheduled task(s)
PID:1372
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C:\Users\Admin\AppData\Local\Temp\attached swifts..exe"{path}"2⤵PID:1772
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C:\Users\Admin\AppData\Local\Temp\attached swifts..exe"{path}"2⤵PID:1784
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C:\Users\Admin\AppData\Local\Temp\attached swifts..exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1768
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