Analysis
-
max time kernel
119s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
01-12-2023 20:50
Static task
static1
Behavioral task
behavioral1
Sample
KcOX.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
KcOX.exe
Resource
win10v2004-20231127-en
General
-
Target
KcOX.exe
-
Size
609KB
-
MD5
fe03b712d2e463fdeb67f9f9f2d98fc9
-
SHA1
d978aed329e47d47791e13f31fc4aa823e545f89
-
SHA256
1ab6ad1baf7099b79f78d5cc575dc08d33320b1f607b6fa038432c3a27fb2dfd
-
SHA512
170ca520c7a9489f8245ae18fb3fa5aa7bc1441d183daa4f72e34a3bbbd393ca46427c25a3809fd805c19348eebf880f1b51c4c147b0ddeac8f1aad02fcd3a03
-
SSDEEP
12288:hMdIt/5J/tXcPl1RWLDmJr4YoKnE5ZrZ4YIfjwIF7:iWBJZ0lSuEbT5ZrlI7ws7
Malware Config
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2828-20-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2828-22-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2828-26-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2828-28-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2828-31-0x0000000000400000-0x0000000000426000-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.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
KcOX.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\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 2228 set thread context of 2828 2228 KcOX.exe KcOX.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
KcOX.exepowershell.exepid process 2828 KcOX.exe 2708 powershell.exe 2828 KcOX.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
KcOX.exepowershell.exedescription pid process Token: SeDebugPrivilege 2828 KcOX.exe Token: SeDebugPrivilege 2708 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
KcOX.exedescription pid process target process PID 2228 wrote to memory of 2708 2228 KcOX.exe powershell.exe PID 2228 wrote to memory of 2708 2228 KcOX.exe powershell.exe PID 2228 wrote to memory of 2708 2228 KcOX.exe powershell.exe PID 2228 wrote to memory of 2708 2228 KcOX.exe powershell.exe PID 2228 wrote to memory of 2636 2228 KcOX.exe schtasks.exe PID 2228 wrote to memory of 2636 2228 KcOX.exe schtasks.exe PID 2228 wrote to memory of 2636 2228 KcOX.exe schtasks.exe PID 2228 wrote to memory of 2636 2228 KcOX.exe schtasks.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe PID 2228 wrote to memory of 2828 2228 KcOX.exe KcOX.exe -
outlook_office_path 1 IoCs
Processes:
KcOX.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 KcOX.exe
Processes
-
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:2228 -
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:2708 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DTeVcECl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB18.tmp"2⤵
- Creates scheduled task(s)
PID:2636 -
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:2828
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD51885fc13266a937357d48ddadb4062b5
SHA10b6920c6530325559171a3c49461247bdbb309f0
SHA2560eb1ed53a97547e6b2c980ccd1ab70c9359b6a6bd1520be44ececcb8a2dee5c7
SHA512b1fc52371ae6030a4d3fcddd7662cdd6c3c2689b2ad34481a200dec05a8df2dbeade47f486823341d3b576c8252e5be2dbf1c73ecaec53693ebd958263e170a9