Analysis
-
max time kernel
142s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
29-09-2023 08:48
Static task
static1
Behavioral task
behavioral1
Sample
Icsmcwcw.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Icsmcwcw.exe
Resource
win10v2004-20230915-en
General
-
Target
Icsmcwcw.exe
-
Size
22KB
-
MD5
3c68b70b369230bfc695f391be176da9
-
SHA1
46c464f0d1cffeadcdd93c6c86c288860089c78a
-
SHA256
cad1feb442eba9bbe034cadb76a076607f5ebc98c499255c2971e743c40d681e
-
SHA512
5bf26ecaadd2831f798ffaa899508f9621b261959540656c93e5b0d51af74e566157fc9f5fa3e9be4f5a24cb701c690bc8b2e72291f412399bd1710a240d0efc
-
SSDEEP
384:MUTTskJkdw5HKWNPnbn+b/AeH9F9wGjEnAtNCSGFqU9:/5EwYqPbn+rLXiiEnuCLFqU9
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6563963046:AAGlyBHZ_ALQCHnOUZcYa0FHqP2za43gVaM/sendMessage?chat_id=5262627523
Signatures
-
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
-
Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3068-9-0x0000000140000000-0x0000000140022000-memory.dmp family_snakekeylogger -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Icsmcwcw.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sssssss = "C:\\Users\\Admin\\AppData\\Roaming\\sssssss.exe" Icsmcwcw.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 66 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Icsmcwcw.exedescription pid process target process PID 5012 set thread context of 3068 5012 Icsmcwcw.exe MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
MSBuild.exepid process 3068 MSBuild.exe 3068 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Icsmcwcw.exeMSBuild.exedescription pid process Token: SeDebugPrivilege 5012 Icsmcwcw.exe Token: SeDebugPrivilege 3068 MSBuild.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
Icsmcwcw.exedescription pid process target process PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe PID 5012 wrote to memory of 3068 5012 Icsmcwcw.exe MSBuild.exe -
outlook_office_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Icsmcwcw.exe"C:\Users\Admin\AppData\Local\Temp\Icsmcwcw.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3068