Analysis
-
max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2023 16:59
Static task
static1
Behavioral task
behavioral1
Sample
chima.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
chima.exe
Resource
win10v2004-20231127-en
General
-
Target
chima.exe
-
Size
812KB
-
MD5
9fdc58e77c21bdc493d017806c814791
-
SHA1
87d45946cb600a4c1bcb30269187124c5fa0e8d1
-
SHA256
f17888c39de05db240eac5f53edc8ad9c1b1512c428dfcce5078bb9636395a8d
-
SHA512
104b1ac6a5dde7bbff09fd40589e2ff7bae999901b7eaa6ba5cb5419112fdd206a2c78445425a63905223e7d014250f2d4dd69a64820166f6be56996bb8a8337
-
SSDEEP
12288:WWytW8G34/uK45+po2cOe9aPgt4npNKacCeIvzMGD1tkChTlCoXtn70IQIVAxqn:l34/up+pJw6BnpgacCeIlDZTlHdndwx
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.acestar.com.ph - Port:
587 - Username:
[email protected] - Password:
cssubic@12345 - Email To:
[email protected]
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 40 api.ipify.org 41 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
chima.exedescription pid process target process PID 1656 set thread context of 1628 1656 chima.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1748 1628 WerFault.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
chima.exeRegSvcs.exepid process 1656 chima.exe 1656 chima.exe 1628 RegSvcs.exe 1628 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
chima.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1656 chima.exe Token: SeDebugPrivilege 1628 RegSvcs.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
chima.exedescription pid process target process PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe PID 1656 wrote to memory of 1628 1656 chima.exe RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\chima.exe"C:\Users\Admin\AppData\Local\Temp\chima.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1628 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 19803⤵
- Program crash
PID:1748
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1628 -ip 16281⤵PID:964