Analysis
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max time kernel
112s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 01:32
Static task
static1
Behavioral task
behavioral1
Sample
myHCMK7ruWH4kYF.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
myHCMK7ruWH4kYF.exe
Resource
win10v2004-20220414-en
General
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Target
myHCMK7ruWH4kYF.exe
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Size
426KB
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MD5
c3561e6ae15aa8f0b68309d6f20798a9
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SHA1
ce3c13209c2799565c11509a5a6cc6b2d2d23699
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SHA256
32a725941812a7722531f5575dd8f25d60392878b1d1d17c48797ac197981fd3
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SHA512
1fb3575afcf1a745fc34926e3fc58ed06d25a7e2eb6d90e648dbe87ee826e2d80a323d89d61a61badb5acfd523953f86f7b71db20c32384aa1a695ece481fa54
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.lettu.us - Port:
587 - Username:
[email protected] - Password:
ilovejesus2020@
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/1684-137-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
CoreCCC Packer 1 IoCs
Detects CoreCCC packer used to load .NET malware.
Processes:
resource yara_rule behavioral2/memory/4200-130-0x0000000000FE0000-0x0000000001050000-memory.dmp coreccc -
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:
myHCMK7ruWH4kYF.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 myHCMK7ruWH4kYF.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 myHCMK7ruWH4kYF.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 myHCMK7ruWH4kYF.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
myHCMK7ruWH4kYF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yDAORE = "C:\\Users\\Admin\\AppData\\Roaming\\yDAORE\\yDAORE.exe" myHCMK7ruWH4kYF.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
myHCMK7ruWH4kYF.exedescription pid process target process PID 4200 set thread context of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
myHCMK7ruWH4kYF.exemyHCMK7ruWH4kYF.exepid process 4200 myHCMK7ruWH4kYF.exe 4200 myHCMK7ruWH4kYF.exe 1684 myHCMK7ruWH4kYF.exe 1684 myHCMK7ruWH4kYF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
myHCMK7ruWH4kYF.exemyHCMK7ruWH4kYF.exedescription pid process Token: SeDebugPrivilege 4200 myHCMK7ruWH4kYF.exe Token: SeDebugPrivilege 1684 myHCMK7ruWH4kYF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
myHCMK7ruWH4kYF.exepid process 1684 myHCMK7ruWH4kYF.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
myHCMK7ruWH4kYF.exemyHCMK7ruWH4kYF.exedescription pid process target process PID 4200 wrote to memory of 1500 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1500 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1500 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 4200 wrote to memory of 1684 4200 myHCMK7ruWH4kYF.exe myHCMK7ruWH4kYF.exe PID 1684 wrote to memory of 1140 1684 myHCMK7ruWH4kYF.exe netsh.exe PID 1684 wrote to memory of 1140 1684 myHCMK7ruWH4kYF.exe netsh.exe PID 1684 wrote to memory of 1140 1684 myHCMK7ruWH4kYF.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
myHCMK7ruWH4kYF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 myHCMK7ruWH4kYF.exe -
outlook_win_path 1 IoCs
Processes:
myHCMK7ruWH4kYF.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 myHCMK7ruWH4kYF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\myHCMK7ruWH4kYF.exe"C:\Users\Admin\AppData\Local\Temp\myHCMK7ruWH4kYF.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\myHCMK7ruWH4kYF.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\myHCMK7ruWH4kYF.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
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1140-139-0x0000000000000000-mapping.dmp
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memory/1500-135-0x0000000000000000-mapping.dmp
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memory/1684-136-0x0000000000000000-mapping.dmp
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memory/1684-137-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB
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memory/1684-138-0x0000000005DC0000-0x0000000005E26000-memory.dmpFilesize
408KB
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memory/1684-140-0x0000000006480000-0x00000000064D0000-memory.dmpFilesize
320KB
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memory/4200-130-0x0000000000FE0000-0x0000000001050000-memory.dmpFilesize
448KB
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memory/4200-131-0x0000000005FB0000-0x0000000006554000-memory.dmpFilesize
5.6MB
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memory/4200-132-0x0000000005A00000-0x0000000005A92000-memory.dmpFilesize
584KB
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memory/4200-133-0x0000000005B90000-0x0000000005B9A000-memory.dmpFilesize
40KB
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memory/4200-134-0x00000000091D0000-0x000000000926C000-memory.dmpFilesize
624KB