Analysis
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max time kernel
49s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
30-03-2023 13:09
Static task
static1
Behavioral task
behavioral1
Sample
New PO #23546738.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
New PO #23546738.exe
Resource
win10v2004-20230220-en
General
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Target
New PO #23546738.exe
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Size
707KB
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MD5
80c0b9e8a00242d0fb960584d89d745e
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SHA1
fb6bb9c955f030eb906e532813f7c7c6102ec55e
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SHA256
0a8368bab522deb622eca5805bc7bc6da0d4a6a63fae959c41c22c7d0b5ffa63
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SHA512
539017fd581d853b9e369eea90447001b08eb816948b3ab45fc9b082cfaaf65f1bb4b3af6cefb22bb1aae3190917ef47d41ce4c1794d546c2e023b628c6d3a71
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SSDEEP
12288:l3B2nTxM9+/nT92EiggkPIYP1QF7MKqv27bYyywV37Zb:lSbT92E8kPT1QFJ22GwVrF
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
tashkent@ess-lnvest-trading.com - Password:
olu chu kwu 554 - Email To:
tashkent@ess-lnvest-trading.com
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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
New PO #23546738.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 New PO #23546738.exe Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 New PO #23546738.exe Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 New PO #23546738.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
New PO #23546738.exedescription pid process target process PID 1740 set thread context of 996 1740 New PO #23546738.exe New PO #23546738.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
New PO #23546738.exepid process 1740 New PO #23546738.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
New PO #23546738.exeNew PO #23546738.exedescription pid process Token: SeDebugPrivilege 1740 New PO #23546738.exe Token: SeDebugPrivilege 996 New PO #23546738.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
New PO #23546738.exedescription pid process target process PID 1740 wrote to memory of 1380 1740 New PO #23546738.exe schtasks.exe PID 1740 wrote to memory of 1380 1740 New PO #23546738.exe schtasks.exe PID 1740 wrote to memory of 1380 1740 New PO #23546738.exe schtasks.exe PID 1740 wrote to memory of 1380 1740 New PO #23546738.exe schtasks.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe PID 1740 wrote to memory of 996 1740 New PO #23546738.exe New PO #23546738.exe -
outlook_office_path 1 IoCs
Processes:
New PO #23546738.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 New PO #23546738.exe -
outlook_win_path 1 IoCs
Processes:
New PO #23546738.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 New PO #23546738.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YJmfGxcN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp696.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\New PO #23546738.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp696.tmpFilesize
1KB
MD5fb515e0d9c40cf28de2021dd497bd474
SHA1b22685c1061236a7f4b26080acb41399c4832373
SHA2565cf344de3261990d13dda968a2138a9532bf6bd799b16caf6902bbb4f02ff138
SHA512b85c3f053d4fc193eee5bf17da4616f60be3054a46a8a856f84c1cf7d6bdfa1d127ac3ae5b3332f8953bd6adaa44e5a50d66dd782974d68e70c3f3ceb2be47c6
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memory/996-68-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-63-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-91-0x0000000004D60000-0x0000000004DA0000-memory.dmpFilesize
256KB
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memory/996-73-0x0000000004D60000-0x0000000004DA0000-memory.dmpFilesize
256KB
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memory/996-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/996-72-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-70-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-65-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-64-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/996-66-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/1740-59-0x0000000004750000-0x0000000004780000-memory.dmpFilesize
192KB
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memory/1740-54-0x0000000000290000-0x0000000000346000-memory.dmpFilesize
728KB
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memory/1740-56-0x0000000000280000-0x000000000028C000-memory.dmpFilesize
48KB
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memory/1740-55-0x0000000000BC0000-0x0000000000C00000-memory.dmpFilesize
256KB
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memory/1740-58-0x00000000051B0000-0x000000000522C000-memory.dmpFilesize
496KB
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memory/1740-57-0x0000000000BC0000-0x0000000000C00000-memory.dmpFilesize
256KB