Analysis
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max time kernel
141s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 23:32
Static task
static1
Behavioral task
behavioral1
Sample
nAzwCl5JbgDN9JQ.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
nAzwCl5JbgDN9JQ.exe
Resource
win10v2004-20220414-en
General
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Target
nAzwCl5JbgDN9JQ.exe
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Size
492KB
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MD5
ba4ca82ee4375ca5af7fa9ade01d445e
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SHA1
e370ac738a52a58cad0c58a392d817e7eed3c650
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SHA256
725812db416e89c4bafe2924855ab5a3f7769a22c69bc02038bbe58e95c6ea7e
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SHA512
be84bf6d45d57d5759d6a9fb59665443a253ce2f58a72b5dfc204ad90dbd2f7bbcc1918e5083c223dcfee4e3525a7fe759c1b044a8284eaf385b0439d86be8a0
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
stark123@@@
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
stark123@@@
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/1580-132-0x0000000000400000-0x0000000000452000-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:
nAzwCl5JbgDN9JQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 nAzwCl5JbgDN9JQ.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 nAzwCl5JbgDN9JQ.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 nAzwCl5JbgDN9JQ.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
nAzwCl5JbgDN9JQ.exedescription pid process target process PID 2636 set thread context of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
nAzwCl5JbgDN9JQ.exepid process 1580 nAzwCl5JbgDN9JQ.exe 1580 nAzwCl5JbgDN9JQ.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
nAzwCl5JbgDN9JQ.exedescription pid process Token: SeDebugPrivilege 1580 nAzwCl5JbgDN9JQ.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
nAzwCl5JbgDN9JQ.exepid process 1580 nAzwCl5JbgDN9JQ.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
nAzwCl5JbgDN9JQ.exenAzwCl5JbgDN9JQ.exedescription pid process target process PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 2636 wrote to memory of 1580 2636 nAzwCl5JbgDN9JQ.exe nAzwCl5JbgDN9JQ.exe PID 1580 wrote to memory of 4124 1580 nAzwCl5JbgDN9JQ.exe netsh.exe PID 1580 wrote to memory of 4124 1580 nAzwCl5JbgDN9JQ.exe netsh.exe PID 1580 wrote to memory of 4124 1580 nAzwCl5JbgDN9JQ.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
nAzwCl5JbgDN9JQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 nAzwCl5JbgDN9JQ.exe -
outlook_win_path 1 IoCs
Processes:
nAzwCl5JbgDN9JQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 nAzwCl5JbgDN9JQ.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\nAzwCl5JbgDN9JQ.exe"C:\Users\Admin\AppData\Local\Temp\nAzwCl5JbgDN9JQ.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\nAzwCl5JbgDN9JQ.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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_v2.0_32\UsageLogs\nAzwCl5JbgDN9JQ.exe.logFilesize
408B
MD504ad5d645afd4aad8257d37d2b197bd9
SHA1f27458933c22a18ed06c3ef023d9356bae6f5e89
SHA256519a7b0a515b09c8d149c48a26e782e13decd80c2a2957a751f58801bed026d0
SHA51234097f7ec87c917ebb2f38a156a33ff1b5f8570141acd666a1fce2cd5d40e464762a3a596a44f078318f92823a7d7b961751c4399040a09e5eddb941f22c4754
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memory/1580-131-0x0000000000000000-mapping.dmp
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memory/1580-132-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1580-134-0x0000000074D70000-0x0000000075321000-memory.dmpFilesize
5.7MB
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memory/2636-130-0x0000000074D70000-0x0000000075321000-memory.dmpFilesize
5.7MB
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memory/4124-135-0x0000000000000000-mapping.dmp