Analysis
- max time kernel
136s - max time network
138s - platform
windows7_x64 - resource
win7-en - submitted
16/09/2021, 04:31
Static task
static1
Behavioral task
behavioral1
Sample
gnLE3LyYFEOTSOh.exe
Resource
win7-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
gnLE3LyYFEOTSOh.exe
Resource
win10v20210408
0 signatures
0 seconds
General
- Target gnLE3LyYFEOTSOh.exe
- Size 424KB
- Sample210916-e5dneacaa5
- SHA256 8b36540feb94ebd4cc8347be22a49fd4cf480ca9b65678744197af3fb9814616
- MD5 4a797d488846aa34c36b3a18ea629b43
- SHA1 2a6a6cf54bb0030b22dfd9136bce212a9e427c1c
- SHA512 d6923ea03fb7c4f5fed4913164a62be3fe4e0889f26646ad92470deb206f184baa2f1dec4e6a1adc1eba1caea87cf991d7f2d06c5dc6467d04805c6a6dbe6ed4
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.priserveinfra.com
-
Port
587
-
Username
-
Password
oppipl121019
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
resource yara_rule behavioral1/memory/560-59-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/560-60-0x000000000043763E-mapping.dmp family_agenttesla behavioral1/memory/560-61-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla - Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1936 set thread context of 560 1936 gnLE3LyYFEOTSOh.exe 30 - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1936 gnLE3LyYFEOTSOh.exe 1936 gnLE3LyYFEOTSOh.exe 560 RegSvcs.exe 560 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1936 gnLE3LyYFEOTSOh.exe Token: SeDebugPrivilege 560 RegSvcs.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30 PID 1936 wrote to memory of 560 1936 gnLE3LyYFEOTSOh.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\gnLE3LyYFEOTSOh.exe"C:\Users\Admin\AppData\Local\Temp\gnLE3LyYFEOTSOh.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:560
-