Analysis
- max time kernel
70s - max time network
67s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:53
Static task
static1
Behavioral task
behavioral1
Sample
sk4Ml.exe
Resource
win7v20201028
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
sk4Ml.exe
Resource
win10v20201028
0 signatures
0 seconds
General
- Target sk4Ml.exe
- Size 1.4MB
- Sample201109-7276f938vx
- SHA256 84fbfaff31bef0f0bdb851ab257a25e9b65e10ceaa1b7c93a0e3b9fbafcc8d41
- MD5 c78facb28580ecc5a518b8dabec5fc41
- SHA1 f95157dfe8964f44d108cd2f1f1f19fea4a2da44
- SHA512 09c6c928f469d211a7ee2f769f94709de0ae7df8fbe20f4bf6da645d7a75d08a2672a24c8ea2b29e703f43ec7764387831490195d6225cf35d208f4aa69e982a
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Credentials
-
Protocol
smtp
-
Host
mail.grupo-pc.com
-
Port
587
-
Username
-
Password
karaco2017pc
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.grupo-pc.com
-
Port
587
-
Username
-
Password
karaco2017pc
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/1888-1-0x000000000087C3FE-mapping.dmp family_agenttesla behavioral2/memory/1888-0-0x0000000000830000-0x0000000000882000-memory.dmp family_agenttesla - Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOSTNAME.url sk4Ml.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1112 set thread context of 1888 1112 sk4Ml.exe 79 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1888 MSBuild.exe 1888 MSBuild.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1888 MSBuild.exe - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1112 sk4Ml.exe 1112 sk4Ml.exe 1112 sk4Ml.exe - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1112 sk4Ml.exe 1112 sk4Ml.exe 1112 sk4Ml.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1112 wrote to memory of 1888 1112 sk4Ml.exe 79 PID 1112 wrote to memory of 1888 1112 sk4Ml.exe 79 PID 1112 wrote to memory of 1888 1112 sk4Ml.exe 79 PID 1112 wrote to memory of 1888 1112 sk4Ml.exe 79 PID 1112 wrote to memory of 1888 1112 sk4Ml.exe 79 PID 1888 wrote to memory of 512 1888 MSBuild.exe 82 PID 1888 wrote to memory of 512 1888 MSBuild.exe 82 PID 1888 wrote to memory of 512 1888 MSBuild.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\sk4Ml.exe"C:\Users\Admin\AppData\Local\Temp\sk4Ml.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:512
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