Analysis
-
max time kernel
145s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
04-06-2023 15:28
Static task
static1
Behavioral task
behavioral1
Sample
A.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
A.exe
Resource
win10v2004-20230220-en
General
-
Target
A.exe
-
Size
443KB
-
MD5
706c4e397de8260d889cf83ba6707e7c
-
SHA1
dd4510b6e29157b56b894e06cc8f8687f4af7143
-
SHA256
1df360694e4b54909b416b5ef5095e54827c8e53d77885032df144272508f013
-
SHA512
d3c55835ff9bc6b00de4e82fc4318baf66a63733c7c88d8a5cd87430038fe7dd35a547dd1978a372dee9b59b8ba9a10e2ed5f35a146342ae4eba8c46da8893e3
-
SSDEEP
6144:Ih7kAkJ0xZuuRlxnUDcWZXA3Zz9mTFLHjhzypfbVb4vG8nYH5d7cwSthf64lv:IJLkJARWIyXa5ULHjIZKYH5VvStRTJ
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6184780923:AAHbCGrBU_2zg9A-73yTyKKCMGf1tkzUFbM/sendMessage?chat_id=759814203
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1868-58-0x0000000000400000-0x000000000041E000-memory.dmp family_snakekeylogger behavioral1/memory/1868-59-0x0000000000400000-0x000000000041E000-memory.dmp family_snakekeylogger behavioral1/memory/1868-61-0x0000000000400000-0x000000000041E000-memory.dmp family_snakekeylogger behavioral1/memory/1868-63-0x0000000000400000-0x000000000041E000-memory.dmp family_snakekeylogger behavioral1/memory/1868-65-0x0000000000400000-0x000000000041E000-memory.dmp family_snakekeylogger behavioral1/memory/1868-66-0x00000000049A0000-0x00000000049E0000-memory.dmp family_snakekeylogger -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
Caspol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Caspol.exe Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Caspol.exe Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Caspol.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:
A.exedescription pid process target process PID 932 set thread context of 1868 932 A.exe Caspol.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 552 1868 WerFault.exe Caspol.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Caspol.exepid process 1868 Caspol.exe 1868 Caspol.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Caspol.exedescription pid process Token: SeDebugPrivilege 1868 Caspol.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
A.exeCaspol.exedescription pid process target process PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 932 wrote to memory of 1868 932 A.exe Caspol.exe PID 1868 wrote to memory of 552 1868 Caspol.exe WerFault.exe PID 1868 wrote to memory of 552 1868 Caspol.exe WerFault.exe PID 1868 wrote to memory of 552 1868 Caspol.exe WerFault.exe PID 1868 wrote to memory of 552 1868 Caspol.exe WerFault.exe -
outlook_office_path 1 IoCs
Processes:
Caspol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Caspol.exe -
outlook_win_path 1 IoCs
Processes:
Caspol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Caspol.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\A.exe"C:\Users\Admin\AppData\Local\Temp\A.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 11483⤵
- Program crash
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/932-54-0x0000000000DB0000-0x0000000000E24000-memory.dmpFilesize
464KB
-
memory/932-55-0x0000000000540000-0x000000000054A000-memory.dmpFilesize
40KB
-
memory/1868-56-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-57-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-58-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-59-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
-
memory/1868-61-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-63-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-65-0x0000000000400000-0x000000000041E000-memory.dmpFilesize
120KB
-
memory/1868-66-0x00000000049A0000-0x00000000049E0000-memory.dmpFilesize
256KB