Analysis
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max time kernel
125s -
max time network
111s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
29-01-2021 14:38
Static task
static1
Behavioral task
behavioral1
Sample
Y6YUOzu5ynWpiPp.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
Y6YUOzu5ynWpiPp.exe
Resource
win10v20201028
General
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Target
Y6YUOzu5ynWpiPp.exe
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Size
738KB
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MD5
634e050470e5dd1bbe3a70eb8e728246
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SHA1
545edebaf3e37197a4fcc75b4e0c2ee0af225ef2
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SHA256
6eb0affd63b0d85be603948881fc6b643103e96e3f68acf1350969e8d09cc7e1
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SHA512
f3085d7193a7ecd74f26d650a2ad56d4b66fc81ef2928e2c413438775deb3d27cc5e22ca0f0fc94700f10c8456de56c1ab745c20b2b69cee11ff73e0d4f52179
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yatchbabara.com - Port:
587 - Username:
[email protected] - Password:
j$Mk$NE7
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/560-12-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/560-13-0x00000000004375DE-mapping.dmp family_agenttesla -
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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Y6YUOzu5ynWpiPp.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\UTCCf = "C:\\Users\\Admin\\AppData\\Roaming\\UTCCf\\UTCCf.exe" Y6YUOzu5ynWpiPp.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Y6YUOzu5ynWpiPp.exedescription pid process target process PID 4772 set thread context of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Y6YUOzu5ynWpiPp.exeY6YUOzu5ynWpiPp.exepid process 4772 Y6YUOzu5ynWpiPp.exe 560 Y6YUOzu5ynWpiPp.exe 560 Y6YUOzu5ynWpiPp.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Y6YUOzu5ynWpiPp.exeY6YUOzu5ynWpiPp.exedescription pid process Token: SeDebugPrivilege 4772 Y6YUOzu5ynWpiPp.exe Token: SeDebugPrivilege 560 Y6YUOzu5ynWpiPp.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Y6YUOzu5ynWpiPp.exepid process 560 Y6YUOzu5ynWpiPp.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Y6YUOzu5ynWpiPp.exedescription pid process target process PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe PID 4772 wrote to memory of 560 4772 Y6YUOzu5ynWpiPp.exe Y6YUOzu5ynWpiPp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Y6YUOzu5ynWpiPp.exe"C:\Users\Admin\AppData\Local\Temp\Y6YUOzu5ynWpiPp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Y6YUOzu5ynWpiPp.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Y6YUOzu5ynWpiPp.exe.logMD5
0c2899d7c6746f42d5bbe088c777f94c
SHA1622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1
SHA2565b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458
SHA512ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078
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memory/560-12-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/560-25-0x00000000057F1000-0x00000000057F2000-memory.dmpFilesize
4KB
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memory/560-22-0x00000000064C0000-0x00000000064C1000-memory.dmpFilesize
4KB
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memory/560-21-0x0000000005C00000-0x0000000005C01000-memory.dmpFilesize
4KB
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memory/560-20-0x00000000057F0000-0x00000000057F1000-memory.dmpFilesize
4KB
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memory/560-15-0x0000000073360000-0x0000000073A4E000-memory.dmpFilesize
6.9MB
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memory/560-13-0x00000000004375DE-mapping.dmp
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memory/4772-7-0x00000000058A0000-0x00000000058A1000-memory.dmpFilesize
4KB
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memory/4772-11-0x0000000007BC0000-0x0000000007C20000-memory.dmpFilesize
384KB
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memory/4772-10-0x0000000007C60000-0x0000000007C61000-memory.dmpFilesize
4KB
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memory/4772-9-0x00000000059A0000-0x00000000059A4000-memory.dmpFilesize
16KB
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memory/4772-8-0x00000000059E0000-0x00000000059E1000-memory.dmpFilesize
4KB
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memory/4772-2-0x0000000073360000-0x0000000073A4E000-memory.dmpFilesize
6.9MB
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memory/4772-6-0x0000000005800000-0x0000000005801000-memory.dmpFilesize
4KB
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memory/4772-5-0x0000000005DC0000-0x0000000005DC1000-memory.dmpFilesize
4KB
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memory/4772-3-0x0000000000F20000-0x0000000000F21000-memory.dmpFilesize
4KB