Analysis
-
max time kernel
166s -
max time network
186s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2022 11:33
Static task
static1
Behavioral task
behavioral1
Sample
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe
Resource
win10v2004-20220812-en
General
-
Target
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe
-
Size
574KB
-
MD5
271925836d2072b74f62a1f30f335fb7
-
SHA1
dc25c270c6dccc9bde0d27474070031cb214e2f0
-
SHA256
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448
-
SHA512
9437ec0bd3c5adbe5fc1eec79a9162262dd32fbfcb9308f9cb9b12d1b95159b0bddd77aa30481462feda70b5f232542eb880eda7308e020ed05c5ea987caaefa
-
SSDEEP
12288:azZB1xM76UBvWnBHRJpcxSQBSAB9WfdLQ3TzAh+n0m07wZJ53c6z9J+tVb7k5:azZBA76UBmJeTqO3TUhY0m07Q53c6z91
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.electrobist.com - Port:
21 - Username:
[email protected] - Password:
cAP&5)Y*cPUE
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
CasPol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
CasPol.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe" CasPol.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 34 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exedescription pid process target process PID 1896 set thread context of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
CasPol.exepid process 2212 CasPol.exe 2212 CasPol.exe 2212 CasPol.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
CasPol.exedescription pid process Token: SeDebugPrivilege 2212 CasPol.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
CasPol.exepid process 2212 CasPol.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exedescription pid process target process PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe PID 1896 wrote to memory of 2212 1896 bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe CasPol.exe -
outlook_office_path 1 IoCs
Processes:
CasPol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe -
outlook_win_path 1 IoCs
Processes:
CasPol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 CasPol.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe"C:\Users\Admin\AppData\Local\Temp\bef9680926b32f2252d5a8b193329833a86d0eea9ea2900a2abc3bc863bb0448.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2212