Analysis
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max time kernel
132s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-11-2024 02:02
Static task
static1
Behavioral task
behavioral1
Sample
424007811 NOLU TEKLiF HK..exe
Resource
win7-20241010-en
General
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Target
424007811 NOLU TEKLiF HK..exe
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Size
744KB
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MD5
520a262f80cf02e30659bc426ba7c170
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SHA1
e310439406536997b929f5efa687e54e9464f2f1
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SHA256
e906e21afae36935bb736db8fa0373c88f2988cd5c8c3e8a646e41eaa449ac6f
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SHA512
d6c4d7a1e3df4d2a640996231436550c86f6026783fe4c499ecc676e5fe838a48cc6321194c3deb92d8ecdedfb4603c66748e84d492bdbcdd169bb2b696e999d
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SSDEEP
12288:f43aCm25qFwzm/OXeDWIiH+UVFKuHwesVOCH2No7sTVBXSryCJVM5:wX56Gm/oexRUauHwesXICgCJVe
Malware Config
Extracted
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
CCu5Z?WuH+bS4hsz
Extracted
agenttesla
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
CCu5Z?WuH+bS4hsz - 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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Agenttesla family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
424007811 NOLU TEKLiF HK..exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 424007811 NOLU TEKLiF HK..exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 18 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
424007811 NOLU TEKLiF HK..exedescription pid Process procid_target PID 3372 set thread context of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
424007811 NOLU TEKLiF HK..exepowershell.exe424007811 NOLU TEKLiF HK..exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 424007811 NOLU TEKLiF HK..exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 424007811 NOLU TEKLiF HK..exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
424007811 NOLU TEKLiF HK..exe424007811 NOLU TEKLiF HK..exepowershell.exepid Process 3372 424007811 NOLU TEKLiF HK..exe 3372 424007811 NOLU TEKLiF HK..exe 3180 424007811 NOLU TEKLiF HK..exe 3180 424007811 NOLU TEKLiF HK..exe 2064 powershell.exe 2064 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
424007811 NOLU TEKLiF HK..exe424007811 NOLU TEKLiF HK..exepowershell.exedescription pid Process Token: SeDebugPrivilege 3372 424007811 NOLU TEKLiF HK..exe Token: SeDebugPrivilege 3180 424007811 NOLU TEKLiF HK..exe Token: SeDebugPrivilege 2064 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
424007811 NOLU TEKLiF HK..exedescription pid Process procid_target PID 3372 wrote to memory of 2064 3372 424007811 NOLU TEKLiF HK..exe 100 PID 3372 wrote to memory of 2064 3372 424007811 NOLU TEKLiF HK..exe 100 PID 3372 wrote to memory of 2064 3372 424007811 NOLU TEKLiF HK..exe 100 PID 3372 wrote to memory of 3904 3372 424007811 NOLU TEKLiF HK..exe 102 PID 3372 wrote to memory of 3904 3372 424007811 NOLU TEKLiF HK..exe 102 PID 3372 wrote to memory of 3904 3372 424007811 NOLU TEKLiF HK..exe 102 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103 PID 3372 wrote to memory of 3180 3372 424007811 NOLU TEKLiF HK..exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3372 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2064
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C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"2⤵PID:3904
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C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"C:\Users\Admin\AppData\Local\Temp\424007811 NOLU TEKLiF HK..exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3180
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82