Analysis
- max time kernel
84s - max time network
61s - platform
windows7_x64 - resource
win7 - submitted
13/07/2020, 14:21
Static task
static1
Behavioral task
behavioral1
Sample
copia rápida.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
copia rápida.exe
Resource
win10v200430
0 signatures
0 seconds
General
- Target copia rápida.exe
- Size 734KB
- Sample200713-21tjst2y2e
- SHA256 d55d2d247eede293c57801a6c95d720cd632836800d3bc4f778a2fbda27e5006
- MD5 84621bce6328025373b86ca543453b93
- SHA1 3dad8a07d31b001bf6c200c806dd365e616832a3
- SHA512 80352dc39dc5eb005d0500b7ef27cd3a50b93ea44e0fb8c1fc597fa06c97ca348808fceddceee2bcee3ab034e45d371cf66ee11c310ff2efd083b2a72409f246
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
atk9202
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1028-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1028-5-0x0000000000446F9E-mapping.dmp family_agenttesla behavioral1/memory/1028-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1028-7-0x0000000000400000-0x000000000044C000-memory.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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" copia rápida.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1492 set thread context of 1028 1492 copia rápida.exe 26 - 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 324 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1028 copia rápida.exe 1028 copia rápida.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 1028 copia rápida.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1028 copia rápida.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1492 wrote to memory of 324 1492 copia rápida.exe 24 PID 1492 wrote to memory of 324 1492 copia rápida.exe 24 PID 1492 wrote to memory of 324 1492 copia rápida.exe 24 PID 1492 wrote to memory of 324 1492 copia rápida.exe 24 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26 PID 1492 wrote to memory of 1028 1492 copia rápida.exe 26
Processes
-
C:\Users\Admin\AppData\Local\Temp\copia rápida.exe"C:\Users\Admin\AppData\Local\Temp\copia rápida.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CsvbFdttjuwF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp81DB.tmp"2⤵
- Creates scheduled task(s)
PID:324
-
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C:\Users\Admin\AppData\Local\Temp\copia rápida.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1028
-