Analysis
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max time kernel
150s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
08-05-2024 13:09
Static task
static1
Behavioral task
behavioral1
Sample
dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe
Resource
win10v2004-20240419-en
General
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Target
dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe
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Size
54KB
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MD5
e480e22b9d128a0235bfa26417b149b6
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SHA1
2c40a4778a6af579cb1ccb6e2263d7e070d1beea
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SHA256
dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be
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SHA512
0811bd96dce609fe618a3e225b5e517c6eba2e8a1492b82320be093c90f6634c30c1005628414ef567e5bbb10171439ab00a97d0943df5b95429260354fcde11
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SSDEEP
768:+e1Qq5r5gIcCT4BuzDOZ0dkfJmKhTf9q9cWpYqWSEANwkiZEXKexucbdmKvVeZWL:11b5lgI9vxdkMaxTBbHZEciUKvVe4L
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dentallink.com.uy - Port:
587 - Username:
[email protected] - Password:
Salvador3274 - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect ZGRat V1 34 IoCs
resource yara_rule behavioral2/memory/1336-4-0x0000000006680000-0x00000000068B0000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-12-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-20-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-18-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-17-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-14-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-10-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-8-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-7-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-30-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-32-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-46-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-60-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-70-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-68-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-66-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-64-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-62-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-58-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-56-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-54-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-52-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-50-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-48-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-44-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-42-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-40-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-36-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-34-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-28-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-26-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-24-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-39-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 behavioral2/memory/1336-22-0x0000000006680000-0x00000000068AA000-memory.dmp family_zgrat_v1 -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hzqldelqcr = "C:\\Users\\Admin\\AppData\\Roaming\\Hzqldelqcr.bat" dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 44 ip-api.com 39 api.ipify.org 41 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1336 set thread context of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4604 RegAsm.exe 4604 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe Token: SeDebugPrivilege 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe Token: SeDebugPrivilege 4604 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98 PID 1336 wrote to memory of 4604 1336 dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe"C:\Users\Admin\AppData\Local\Temp\dbf70f863f2d0dd847bf23b929faf542880c0d72ecc9698ab33343ecd73a04be.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4604
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