Analysis
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max time kernel
92s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:36
Static task
static1
Behavioral task
behavioral1
Sample
PO_4091.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
PO_4091.exe
Resource
win10v2004-20220414-en
General
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Target
PO_4091.exe
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Size
480KB
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MD5
2f0bc79fec8651f0e45ecfbb229d0b7f
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SHA1
a3107ca93d12cbc6f411233aeb017e9391aac832
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SHA256
66a70b0fbd80aa28f3215b944260a8ce06a97d6e7f975cbd0100fba806b95016
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SHA512
ee9e741d3be90e33b5a9dc6977833bcae25d9e1472d2e146c68e80c75ee389eab3304bbb8ea2a6c8aae095d8bae5a1856964374bf3e0a118659c9536c3989980
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
[email protected] - Password:
neighbor123
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1748-61-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1748-62-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1748-63-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1748-64-0x000000000044CA0E-mapping.dmp family_agenttesla behavioral1/memory/1748-66-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1748-68-0x0000000000400000-0x0000000000452000-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:
PO_4091.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO_4091.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO_4091.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO_4091.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PO_4091.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\FhczPe = "C:\\Users\\Admin\\AppData\\Roaming\\FhczPe\\FhczPe.exe" PO_4091.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO_4091.exedescription pid process target process PID 976 set thread context of 1748 976 PO_4091.exe PO_4091.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 3 IoCs
Processes:
PO_4091.exePO_4091.exepid process 976 PO_4091.exe 1748 PO_4091.exe 1748 PO_4091.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO_4091.exePO_4091.exedescription pid process Token: SeDebugPrivilege 976 PO_4091.exe Token: SeDebugPrivilege 1748 PO_4091.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO_4091.exepid process 1748 PO_4091.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
PO_4091.exePO_4091.exedescription pid process target process PID 976 wrote to memory of 1744 976 PO_4091.exe schtasks.exe PID 976 wrote to memory of 1744 976 PO_4091.exe schtasks.exe PID 976 wrote to memory of 1744 976 PO_4091.exe schtasks.exe PID 976 wrote to memory of 1744 976 PO_4091.exe schtasks.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 976 wrote to memory of 1748 976 PO_4091.exe PO_4091.exe PID 1748 wrote to memory of 1660 1748 PO_4091.exe netsh.exe PID 1748 wrote to memory of 1660 1748 PO_4091.exe netsh.exe PID 1748 wrote to memory of 1660 1748 PO_4091.exe netsh.exe PID 1748 wrote to memory of 1660 1748 PO_4091.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
PO_4091.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO_4091.exe -
outlook_win_path 1 IoCs
Processes:
PO_4091.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO_4091.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO_4091.exe"C:\Users\Admin\AppData\Local\Temp\PO_4091.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dpgQkcc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp13FE.tmp"2⤵
- Creates scheduled task(s)
PID:1744 -
C:\Users\Admin\AppData\Local\Temp\PO_4091.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1748 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:1660
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp13FE.tmpFilesize
1KB
MD5ff76dc8525af96ee32784750e39b89f0
SHA14ecd2a2ba40bded720a2b29b9a91cf2590d61fe7
SHA256ac965936cc637ee7a1638185af0e8fa6bc9f2b4bec93813795ca9859b0e5f517
SHA5129da971e36a69f974ea193064468cf67098530d1c5e14bdf5de71d85ed3db2646d84066e9f0dd5d663471f8b66951d5caf2925ae96d94ce18385e019cedee826f
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memory/976-54-0x00000000752D1000-0x00000000752D3000-memory.dmpFilesize
8KB
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memory/976-55-0x00000000744F0000-0x0000000074A9B000-memory.dmpFilesize
5.7MB
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memory/1660-71-0x0000000000000000-mapping.dmp
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memory/1744-56-0x0000000000000000-mapping.dmp
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memory/1748-61-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-59-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-62-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-63-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-64-0x000000000044CA0E-mapping.dmp
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memory/1748-66-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-68-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB
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memory/1748-70-0x00000000744F0000-0x0000000074A9B000-memory.dmpFilesize
5.7MB
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memory/1748-58-0x0000000000400000-0x0000000000452000-memory.dmpFilesize
328KB