Analysis
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max time kernel
101s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 22:27
Static task
static1
Behavioral task
behavioral1
Sample
x1mxcUXjjHMfaSa.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
x1mxcUXjjHMfaSa.exe
Resource
win10v2004-20220414-en
General
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Target
x1mxcUXjjHMfaSa.exe
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Size
477KB
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MD5
68856fdacb6584e5890f829511aeb545
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SHA1
dc51e48753f6e6b25a14c5313fe12f2d0f68b4ef
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SHA256
12846f275b6c95522b1b02433f0b11ea979cc328e0ea607c9d706b222d6ebd5a
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SHA512
0968f8cd314b731b1b4bfd41248ac48191c6cccd7e3582ca21e1f9d7a67cdae89fe5541c7fe430f1a154b80d249d8edbda34a4c2a66d3b0a2dcd17d68bb71da2
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.annlap.com - Port:
587 - Username:
[email protected] - Password:
Control84@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3220-136-0x0000000000400000-0x000000000045A000-memory.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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 x1mxcUXjjHMfaSa.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 x1mxcUXjjHMfaSa.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 x1mxcUXjjHMfaSa.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe" x1mxcUXjjHMfaSa.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription pid process target process PID 2116 set thread context of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
x1mxcUXjjHMfaSa.exex1mxcUXjjHMfaSa.exepid process 2116 x1mxcUXjjHMfaSa.exe 2116 x1mxcUXjjHMfaSa.exe 2116 x1mxcUXjjHMfaSa.exe 3220 x1mxcUXjjHMfaSa.exe 3220 x1mxcUXjjHMfaSa.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
x1mxcUXjjHMfaSa.exex1mxcUXjjHMfaSa.exedescription pid process Token: SeDebugPrivilege 2116 x1mxcUXjjHMfaSa.exe Token: SeDebugPrivilege 3220 x1mxcUXjjHMfaSa.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
x1mxcUXjjHMfaSa.exepid process 3220 x1mxcUXjjHMfaSa.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription pid process target process PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe PID 2116 wrote to memory of 3220 2116 x1mxcUXjjHMfaSa.exe x1mxcUXjjHMfaSa.exe -
outlook_office_path 1 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 x1mxcUXjjHMfaSa.exe -
outlook_win_path 1 IoCs
Processes:
x1mxcUXjjHMfaSa.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 x1mxcUXjjHMfaSa.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\x1mxcUXjjHMfaSa.exe"C:\Users\Admin\AppData\Local\Temp\x1mxcUXjjHMfaSa.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\x1mxcUXjjHMfaSa.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s camsvc1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\x1mxcUXjjHMfaSa.exe.logFilesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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memory/2116-130-0x00000000005B0000-0x000000000062E000-memory.dmpFilesize
504KB
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memory/2116-131-0x00000000079D0000-0x0000000007F74000-memory.dmpFilesize
5.6MB
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memory/2116-132-0x00000000074C0000-0x0000000007552000-memory.dmpFilesize
584KB
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memory/2116-133-0x00000000074B0000-0x00000000074BA000-memory.dmpFilesize
40KB
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memory/2116-134-0x00000000077A0000-0x000000000783C000-memory.dmpFilesize
624KB
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memory/3220-135-0x0000000000000000-mapping.dmp
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memory/3220-136-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
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memory/3220-138-0x0000000005B70000-0x0000000005BD6000-memory.dmpFilesize
408KB
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memory/3220-139-0x00000000069D0000-0x0000000006A20000-memory.dmpFilesize
320KB