Analysis
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max time kernel
122s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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
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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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 4 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
424007811 NOLU TEKLiF HK..exedescription pid Process procid_target PID 1064 set thread context of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 -
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..exe424007811 NOLU TEKLiF HK..exepowershell.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 424007811 NOLU TEKLiF HK..exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
424007811 NOLU TEKLiF HK..exepowershell.exepid Process 2884 424007811 NOLU TEKLiF HK..exe 2884 424007811 NOLU TEKLiF HK..exe 2752 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
424007811 NOLU TEKLiF HK..exepowershell.exedescription pid Process Token: SeDebugPrivilege 2884 424007811 NOLU TEKLiF HK..exe Token: SeDebugPrivilege 2752 powershell.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
424007811 NOLU TEKLiF HK..exedescription pid Process procid_target PID 1064 wrote to memory of 2752 1064 424007811 NOLU TEKLiF HK..exe 30 PID 1064 wrote to memory of 2752 1064 424007811 NOLU TEKLiF HK..exe 30 PID 1064 wrote to memory of 2752 1064 424007811 NOLU TEKLiF HK..exe 30 PID 1064 wrote to memory of 2752 1064 424007811 NOLU TEKLiF HK..exe 30 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32 PID 1064 wrote to memory of 2884 1064 424007811 NOLU TEKLiF HK..exe 32
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⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1064 -
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:2752
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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:2884
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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
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