Analysis
- max time kernel
149s - max time network
143s - platform
windows10_x64 - resource
win10 - submitted
09/07/2020, 13:35
Static task
static1
Behavioral task
behavioral1
Sample
attached swifts.exe
Resource
win7
Behavioral task
behavioral2
Sample
attached swifts.exe
Resource
win10
General
- Target attached swifts.exe
- Size 737KB
- Sample200709-x6sttxcava
- SHA256 cc1d466f94bbd61eb8ef952b8f112d2015cf0b14c72f6f9b47e0ab3d4b368b2f
- MD5 7a52b8a391d6c4a2d421ae7367a7eb8a
- SHA1 607af296abcb31db79877e1cd6f6f25e8c88f3f5
- SHA512 d0866ffdda1440893aa00d151d0783e9c604805eb9a0412a63661a49b0398a2b776e95c223193f1080a06f4b386f088c7d8708f326d331a38853781618762b9d
- MD5 SHA1 SHA512
Malware Config
Extracted
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Protocol
smtp
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Host
mail.mexicanproduct.com.mx
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Port
587
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Username
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Password
Produccion2020.
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.mexicanproduct.com.mx
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Port
587
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Username
-
Password
Produccion2020.
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3820-2-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral2/memory/3820-3-0x000000000044983E-mapping.dmp family_agenttesla - 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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3048 set thread context of 3820 3048 attached swifts.exe 72 - 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 3804 schtasks.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 3048 attached swifts.exe 3048 attached swifts.exe 3048 attached swifts.exe 3048 attached swifts.exe 3048 attached swifts.exe 3048 attached swifts.exe 3048 attached swifts.exe 3820 attached swifts.exe 3820 attached swifts.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3048 attached swifts.exe Token: SeDebugPrivilege 3820 attached swifts.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3820 attached swifts.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3048 wrote to memory of 3804 3048 attached swifts.exe 67 PID 3048 wrote to memory of 3804 3048 attached swifts.exe 67 PID 3048 wrote to memory of 3804 3048 attached swifts.exe 67 PID 3048 wrote to memory of 1732 3048 attached swifts.exe 69 PID 3048 wrote to memory of 1732 3048 attached swifts.exe 69 PID 3048 wrote to memory of 1732 3048 attached swifts.exe 69 PID 3048 wrote to memory of 3860 3048 attached swifts.exe 70 PID 3048 wrote to memory of 3860 3048 attached swifts.exe 70 PID 3048 wrote to memory of 3860 3048 attached swifts.exe 70 PID 3048 wrote to memory of 3868 3048 attached swifts.exe 71 PID 3048 wrote to memory of 3868 3048 attached swifts.exe 71 PID 3048 wrote to memory of 3868 3048 attached swifts.exe 71 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72 PID 3048 wrote to memory of 3820 3048 attached swifts.exe 72
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:3048 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QmZkCrTdrajDkB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp69A2.tmp"2⤵
- Creates scheduled task(s)
PID:3804
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C:\Users\Admin\AppData\Local\Temp\attached swifts.exe"{path}"2⤵PID:1732
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C:\Users\Admin\AppData\Local\Temp\attached swifts.exe"{path}"2⤵PID:3860
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C:\Users\Admin\AppData\Local\Temp\attached swifts.exe"{path}"2⤵PID:3868
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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:3820
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