Analysis
- max time kernel
150s - max time network
130s - platform
windows10_x64 - resource
win10 - submitted
15/09/2020, 05:40
Static task
static1
Behavioral task
behavioral1
Sample
8f52711815407baaddec35fd9cf56358.exe
Resource
win7
Behavioral task
behavioral2
Sample
8f52711815407baaddec35fd9cf56358.exe
Resource
win10
General
- Target 8f52711815407baaddec35fd9cf56358.exe
- Size 474KB
- Sample200915-k3xtzbx586
- SHA256 c83d1de6588bfc8fde4db24a20f2cdcbecd2917faf45e5f3327fccd01e80b953
- MD5 8f52711815407baaddec35fd9cf56358
- SHA1 fe47621154212ae7214adb70d3f5bc5e51afdc11
- SHA512 9471034dec6f219085158bf0af9bf101838ba8a304fd0ccc135d3a971790e4238dd74ac43ebbf7295d81c53bb9fe1e966e5b80f14d481016e87e60f9868c05ed
- MD5 SHA1 SHA512
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.gautengelectrical.co.za
-
Port
587
-
Username
-
Password
prisci7766
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/1860-2-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1860-3-0x00000000004373EE-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 3828 set thread context of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 - 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 1440 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3828 8f52711815407baaddec35fd9cf56358.exe 1860 8f52711815407baaddec35fd9cf56358.exe 1860 8f52711815407baaddec35fd9cf56358.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3828 8f52711815407baaddec35fd9cf56358.exe Token: SeDebugPrivilege 1860 8f52711815407baaddec35fd9cf56358.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1860 8f52711815407baaddec35fd9cf56358.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3828 wrote to memory of 1440 3828 8f52711815407baaddec35fd9cf56358.exe 76 PID 3828 wrote to memory of 1440 3828 8f52711815407baaddec35fd9cf56358.exe 76 PID 3828 wrote to memory of 1440 3828 8f52711815407baaddec35fd9cf56358.exe 76 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78 PID 3828 wrote to memory of 1860 3828 8f52711815407baaddec35fd9cf56358.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\8f52711815407baaddec35fd9cf56358.exe"C:\Users\Admin\AppData\Local\Temp\8f52711815407baaddec35fd9cf56358.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3828 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fmzKeJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE3DE.tmp"2⤵
- Creates scheduled task(s)
PID:1440
-
-
C:\Users\Admin\AppData\Local\Temp\8f52711815407baaddec35fd9cf56358.exe"C:\Users\Admin\AppData\Local\Temp\8f52711815407baaddec35fd9cf56358.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1860
-