Analysis
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max time kernel
139s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2023 02:22
Static task
static1
Behavioral task
behavioral1
Sample
Nlzteo.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
Nlzteo.exe
Resource
win10v2004-20231130-en
General
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Target
Nlzteo.exe
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Size
193KB
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MD5
b69f2cdbf28652571e762f9aac158b50
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SHA1
2d10897a4446c1f64d5859140a83d516b3ffc358
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SHA256
d82b131f63b7421b9de90ad8ac7a793d369996f1e16abcda35513fd06ca8d300
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SHA512
d4e5f9baaed7a2b151d6e10c79de959d0a322d21e62e3a556fc9c5f0e763a4ef92e9e0c604108c9349af4ce80408890b547c82a95710b768e3169279477dbaac
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SSDEEP
768:npOCUM461xGqTpjk6rNj8Nyo4LNCaCqJ6+rLnx+:pOnMz1IqTpreNyDNJCE8
Malware Config
Extracted
Protocol: smtp- Host:
meka.ldc.lv - Port:
587 - Username:
[email protected] - Password:
DJj8Mza7MM
Extracted
agenttesla
Protocol: smtp- Host:
meka.ldc.lv - Port:
587 - Username:
[email protected] - Password:
DJj8Mza7MM - 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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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 2 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 55 api.ipify.org 56 api.ipify.org 57 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Nlzteo.exedescription pid process target process PID 1848 set thread context of 4324 1848 Nlzteo.exe Nlzteo.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Nlzteo.exeNlzteo.exepid process 1848 Nlzteo.exe 4324 Nlzteo.exe 4324 Nlzteo.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Nlzteo.exeNlzteo.exedescription pid process Token: SeDebugPrivilege 1848 Nlzteo.exe Token: SeDebugPrivilege 4324 Nlzteo.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Nlzteo.exepid process 4324 Nlzteo.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Nlzteo.exedescription pid process target process PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe PID 1848 wrote to memory of 4324 1848 Nlzteo.exe Nlzteo.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe"C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848 -
C:\Users\Admin\AppData\Local\Temp\Nlzteo.exeC:\Users\Admin\AppData\Local\Temp\Nlzteo.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4324
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5489c7565f9b029ba9fadff774073cc98
SHA156c05089b33ee7e7dfa9e6a2d098164efd8e1150
SHA25610bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4
SHA512ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac