Analysis
- max time kernel
137s - max time network
83s - platform
windows10_x64 - resource
win10v200430 - submitted
27/06/2020, 23:19
Static task
static1
Behavioral task
behavioral1
Sample
SWIFT COPY.exe
Resource
win7
Behavioral task
behavioral2
Sample
SWIFT COPY.exe
Resource
win10v200430
General
- Target SWIFT COPY.exe
- Size 416KB
- Sample200627-aaxndd357a
- SHA256 6ba493ea1e159994234cd97a74f73df015437fecb04bf65c350d3d55f7940949
- MD5 2b506cfd99e66483f273f28d46d96809
- SHA1 0bbefb890d82e1f77f05facd69171b4613d71d0c
- SHA512 30b64e4a8c788ecb202632b76881a81311a966a372370bd7df366d9d83ce233adb901c2a57b07b51a3183c8f4960b7b7b163bc5127da421ea0137f94a4eacea7
- MD5 SHA1 SHA512
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.mytecheng.com
-
Port
587
-
Username
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Password
Pakistan@321
Extracted
-
agenttesla
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Protocol
smtp
-
Host
mail.mytecheng.com
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Port
587
-
Username
-
Password
Pakistan@321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3832-2-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral2/memory/3832-3-0x000000000044763E-mapping.dmp family_agenttesla - Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts SWIFT COPY.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" SWIFT COPY.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 640 set thread context of 3832 640 SWIFT COPY.exe 74 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2724 schtasks.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 3756 REG.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 640 SWIFT COPY.exe 3832 SWIFT COPY.exe 3832 SWIFT COPY.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 640 SWIFT COPY.exe Token: SeDebugPrivilege 3832 SWIFT COPY.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 640 wrote to memory of 2724 640 SWIFT COPY.exe 72 PID 640 wrote to memory of 2724 640 SWIFT COPY.exe 72 PID 640 wrote to memory of 2724 640 SWIFT COPY.exe 72 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 640 wrote to memory of 3832 640 SWIFT COPY.exe 74 PID 3832 wrote to memory of 3756 3832 SWIFT COPY.exe 76 PID 3832 wrote to memory of 3756 3832 SWIFT COPY.exe 76 PID 3832 wrote to memory of 3756 3832 SWIFT COPY.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\SWIFT COPY.exe"C:\Users\Admin\AppData\Local\Temp\SWIFT COPY.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:640 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GjbvhIqrtWfVi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5087.tmp"2⤵
- Creates scheduled task(s)
PID:2724
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C:\Users\Admin\AppData\Local\Temp\SWIFT COPY.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f3⤵
- Modifies registry key
PID:3756
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