Analysis
- max time kernel
149s - max time network
150s - platform
windows10_x64 - resource
win10 - submitted
24/06/2020, 13:38
Static task
static1
Behavioral task
behavioral1
Sample
Draft BL Docs #09051.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Draft BL Docs #09051.exe
Resource
win10
General
- Target Draft BL Docs #09051.exe
- Size 435KB
- Sample200624-mhr3rrfjkx
- SHA256 798676352c75523109a4cd08f282ae658bdde5ba1e77b45d19c8fee68115d3df
- MD5 8003896580cca4a06438f7129deee0df
- SHA1 87dd78a301e21515a3955a7559feb693a39095a0
- SHA512 daee5e74d2b3200c58f27590c462367ee0380898c3318e3ef9e379aed73c6b5a24012c68a323bd3201fa6434603ba2db3f4a890167f1a41c3a57123b58f10450
- MD5 SHA1 SHA512
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.retramtrading.com
-
Port
587
-
Username
-
Password
@2018pierre321
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.retramtrading.com
-
Port
587
-
Username
-
Password
@2018pierre321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3608-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/3608-3-0x0000000000446FBE-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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\app = "C:\\Users\\Admin\\AppData\\Roaming\\app\\app.exe" Draft BL Docs #09051.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3068 set thread context of 3608 3068 Draft BL Docs #09051.exe 69 - 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 3952 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3068 Draft BL Docs #09051.exe 3608 Draft BL Docs #09051.exe 3608 Draft BL Docs #09051.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 3608 Draft BL Docs #09051.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3068 Draft BL Docs #09051.exe Token: SeDebugPrivilege 3608 Draft BL Docs #09051.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3068 wrote to memory of 3952 3068 Draft BL Docs #09051.exe 67 PID 3068 wrote to memory of 3952 3068 Draft BL Docs #09051.exe 67 PID 3068 wrote to memory of 3952 3068 Draft BL Docs #09051.exe 67 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69 PID 3068 wrote to memory of 3608 3068 Draft BL Docs #09051.exe 69
Processes
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C:\Users\Admin\AppData\Local\Temp\Draft BL Docs #09051.exe"C:\Users\Admin\AppData\Local\Temp\Draft BL Docs #09051.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fhLQlVpyYLGD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp78E4.tmp"2⤵
- Creates scheduled task(s)
PID:3952
-
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C:\Users\Admin\AppData\Local\Temp\Draft BL Docs #09051.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:3608
-