Analysis
- max time kernel
888s - max time network
895s - platform
windows7_x64 - resource
win7 - submitted
13/07/2020, 18:19
Static task
static1
Behavioral task
behavioral1
Sample
masterrrrrrrrrrrrrrrrrrr.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
General
- Target masterrrrrrrrrrrrrrrrrrr.exe
- Sample200713-wxpvcebjx2
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
smtp.originmoore.com
-
Port
587
-
Username
-
Password
3ih1+{LE_qwh
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/108-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/108-1-0x0000000000447FDE-mapping.dmp family_agenttesla behavioral1/memory/108-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/108-3-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\xbajm = "C:\\AVGLFESB\\xbajmk\\xbajmkJSg.vbs" masterrrrrrrrrrrrrrrrrrr.exe - Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum masterrrrrrrrrrrrrrrrrrr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 masterrrrrrrrrrrrrrrrrrr.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1088 set thread context of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 - Suspicious behavior: EnumeratesProcesses 40 IoCs
pid Process 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 108 InstallUtil.exe 108 InstallUtil.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 108 InstallUtil.exe 108 InstallUtil.exe 108 InstallUtil.exe 108 InstallUtil.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 836 taskmgr.exe 852 taskmgr.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1088 masterrrrrrrrrrrrrrrrrrr.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 836 taskmgr.exe Token: SeDebugPrivilege 108 InstallUtil.exe Token: SeDebugPrivilege 852 taskmgr.exe - Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe - Suspicious use of SendNotifyMessage 64 IoCs
pid Process 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 836 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe 852 taskmgr.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 108 InstallUtil.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25 PID 1088 wrote to memory of 108 1088 masterrrrrrrrrrrrrrrrrrr.exe 25
Processes
-
C:\Users\Admin\AppData\Local\Temp\masterrrrrrrrrrrrrrrrrrr.exe"C:\Users\Admin\AppData\Local\Temp\masterrrrrrrrrrrrrrrrrrr.exe"1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1088 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:108
-
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:836
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:852