Analysis
-
max time kernel
129s -
max time network
122s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
20-10-2021 11:10
Static task
static1
Behavioral task
behavioral1
Sample
invoice.exe
Resource
win7-en-20210920
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
invoice.exe
Resource
win10-en-20211014
0 signatures
0 seconds
General
-
Target
invoice.exe
-
Size
465KB
-
MD5
94e2058fe9f2c02836c827fbb0e06ef7
-
SHA1
06cf03bd37a5d1c2c36bb50d3298872a63e701e0
-
SHA256
4e5ce14b2cd597bd70f739be171599d4af7f1f7108931ff38958166bd6642023
-
SHA512
904f9f394346b3df1db68dd3b4ee0ad373e6d35098d9659b49bd3f4974c2ac365a3186924114ead255da9e8dff05ec14de7a1685326be5a2526e3300c805e597
Malware Config
Extracted
Family
agenttesla
Credentials
Protocol: smtp- Host:
mail.maxsweater.com - Port:
587 - Username:
[email protected] - Password:
max1234
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/864-61-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/864-62-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/864-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/864-64-0x000000000043761E-mapping.dmp family_agenttesla behavioral1/memory/864-65-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegSvcs.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe" RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
invoice.exedescription pid process target process PID 1540 set thread context of 864 1540 invoice.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
invoice.exeRegSvcs.exepid process 1540 invoice.exe 1540 invoice.exe 864 RegSvcs.exe 864 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
invoice.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1540 invoice.exe Token: SeDebugPrivilege 864 RegSvcs.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
invoice.exedescription pid process target process PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe PID 1540 wrote to memory of 864 1540 invoice.exe RegSvcs.exe -
outlook_office_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
Processes:
RegSvcs.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/864-64-0x000000000043761E-mapping.dmp
-
memory/864-59-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-60-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-61-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-62-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/864-67-0x0000000000660000-0x0000000000661000-memory.dmpFilesize
4KB
-
memory/864-68-0x0000000000661000-0x0000000000662000-memory.dmpFilesize
4KB
-
memory/1540-56-0x0000000007090000-0x0000000007091000-memory.dmpFilesize
4KB
-
memory/1540-57-0x0000000000690000-0x0000000000697000-memory.dmpFilesize
28KB
-
memory/1540-58-0x0000000007020000-0x0000000007078000-memory.dmpFilesize
352KB
-
memory/1540-54-0x0000000000960000-0x0000000000961000-memory.dmpFilesize
4KB