Analysis
- max time kernel
123s - max time network
124s - platform
windows10_x64 - resource
win10 - submitted
11/07/2020, 16:41
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.xls.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Invoice.xls.exe
Resource
win10
0 signatures
0 seconds
General
- Target Invoice.xls.exe
- Size 520KB
- Sample200711-2bk4d21yfx
- SHA256 38aa6ce584971bec4bcc91ac05fd05ac08ad5289236c5b332a5782e83df8e578
- MD5 02560028dfcdedc12d0935646cf8c647
- SHA1 086beef2db5d9d89ff0d4c54b0d8a2235ed3c30f
- SHA512 e4791b3b296fd06ed7bb8dfb396b2edba2d1a43486c4f57c80512e29d7d30fedbb23dfb5beb93d1da095ff684eb3ed116054f40a1c60b1e5af4f792cce096003
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Credentials
-
Protocol
smtp
-
Host
smtp.rezuit.pro
-
Port
587
-
Username
-
Password
chukwuma22
Signatures
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 720 wrote to memory of 3844 720 Invoice.xls.exe 67 PID 720 wrote to memory of 3844 720 Invoice.xls.exe 67 PID 720 wrote to memory of 3844 720 Invoice.xls.exe 67 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 PID 720 wrote to memory of 3932 720 Invoice.xls.exe 69 - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 720 set thread context of 3932 720 Invoice.xls.exe 69 - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 720 Invoice.xls.exe Token: SeDebugPrivilege 3932 Invoice.xls.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 720 Invoice.xls.exe 3932 Invoice.xls.exe 3932 Invoice.xls.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3844 schtasks.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice.xls.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.xls.exe"1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:720 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uLASFjYZDnPj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C34.tmp"2⤵
- Creates scheduled task(s)
PID:3844
-
-
C:\Users\Admin\AppData\Local\Temp\Invoice.xls.exe"{path}"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:3932
-