Analysis
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max time kernel
118s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
01-12-2023 20:52
Static task
static1
Behavioral task
behavioral1
Sample
KcOX.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
KcOX.exe
Resource
win10v2004-20231127-en
General
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Target
KcOX.exe
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Size
609KB
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MD5
fe03b712d2e463fdeb67f9f9f2d98fc9
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SHA1
d978aed329e47d47791e13f31fc4aa823e545f89
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SHA256
1ab6ad1baf7099b79f78d5cc575dc08d33320b1f607b6fa038432c3a27fb2dfd
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SHA512
170ca520c7a9489f8245ae18fb3fa5aa7bc1441d183daa4f72e34a3bbbd393ca46427c25a3809fd805c19348eebf880f1b51c4c147b0ddeac8f1aad02fcd3a03
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SSDEEP
12288:hMdIt/5J/tXcPl1RWLDmJr4YoKnE5ZrZ4YIfjwIF7:iWBJZ0lSuEbT5ZrlI7ws7
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2764-16-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2764-17-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2764-20-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2764-23-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2764-25-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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:
KcOX.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
KcOX.exedescription pid process target process PID 2620 set thread context of 2764 2620 KcOX.exe KcOX.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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:
KcOX.exepowershell.exepid process 2764 KcOX.exe 2760 powershell.exe 2764 KcOX.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
KcOX.exepowershell.exedescription pid process Token: SeDebugPrivilege 2764 KcOX.exe Token: SeDebugPrivilege 2760 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
KcOX.exedescription pid process target process PID 2620 wrote to memory of 2760 2620 KcOX.exe powershell.exe PID 2620 wrote to memory of 2760 2620 KcOX.exe powershell.exe PID 2620 wrote to memory of 2760 2620 KcOX.exe powershell.exe PID 2620 wrote to memory of 2760 2620 KcOX.exe powershell.exe PID 2620 wrote to memory of 2800 2620 KcOX.exe schtasks.exe PID 2620 wrote to memory of 2800 2620 KcOX.exe schtasks.exe PID 2620 wrote to memory of 2800 2620 KcOX.exe schtasks.exe PID 2620 wrote to memory of 2800 2620 KcOX.exe schtasks.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe PID 2620 wrote to memory of 2764 2620 KcOX.exe KcOX.exe -
outlook_office_path 1 IoCs
Processes:
KcOX.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe -
outlook_win_path 1 IoCs
Processes:
KcOX.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\KcOX.exe"C:\Users\Admin\AppData\Local\Temp\KcOX.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2620 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DTeVcECl.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2760 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DTeVcECl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBDF2.tmp"2⤵
- Creates scheduled task(s)
PID:2800 -
C:\Users\Admin\AppData\Local\Temp\KcOX.exe"C:\Users\Admin\AppData\Local\Temp\KcOX.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2764
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5feda6297fc62d2d609d6efc5070d8039
SHA14d49dae1dec0d94c82420edddb3046d81857f997
SHA2566fe9b24749cc7e7fd34aaaeb0c0c5c91007a9511a412fc9bb51ac24e29b09290
SHA5126f2786333500a08eaf2e4133af135390cdc202d5a9030c2c6e27212825616e0140ae2a113f3b6009719eb72748855e54cb032889f881fd5b3491f3fe21d428dc