Analysis
-
max time kernel
146s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 02:08
Static task
static1
Behavioral task
behavioral1
Sample
No42113-No42114.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
No42113-No42114.exe
Resource
win10v2004-20220414-en
General
-
Target
No42113-No42114.exe
-
Size
922KB
-
MD5
f199ca0e897812a4218b91a293a7656b
-
SHA1
0c9ea2d1c5c0254a278940c3b5ca7c25942b50fb
-
SHA256
9300260a0aa311aa5e53e3c015ba7c63bb52ccb40c9841d4f566a6019143257d
-
SHA512
3dd1ba3483ac0ce0d4202ebcf400ed0abd7a17f5e5e595fbff9f08606a72d21a3f752b3fff72e91c966a6db1edd44a0807681ec6e901927275a2f3441d2464d5
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt
masslogger
Signatures
-
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
-
MassLogger Main Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4580-137-0x0000000000400000-0x00000000004A8000-memory.dmp family_masslogger -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
Processes:
yara_rule masslogger_log_file -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
No42113-No42114.exeNo42113-No42114.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation No42113-No42114.exe Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation No42113-No42114.exe -
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 18 IoCs
Processes:
No42113-No42114.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook No42113-No42114.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook No42113-No42114.exe Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.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 44 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
No42113-No42114.exedescription pid process target process PID 2704 set thread context of 4580 2704 No42113-No42114.exe No42113-No42114.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
No42113-No42114.exepid process 4580 No42113-No42114.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
No42113-No42114.exeNo42113-No42114.exepid process 2704 No42113-No42114.exe 2704 No42113-No42114.exe 2704 No42113-No42114.exe 4580 No42113-No42114.exe 4580 No42113-No42114.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
No42113-No42114.exeNo42113-No42114.exedescription pid process Token: SeDebugPrivilege 2704 No42113-No42114.exe Token: SeDebugPrivilege 4580 No42113-No42114.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
No42113-No42114.exepid process 4580 No42113-No42114.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
No42113-No42114.exedescription pid process target process PID 2704 wrote to memory of 4504 2704 No42113-No42114.exe schtasks.exe PID 2704 wrote to memory of 4504 2704 No42113-No42114.exe schtasks.exe PID 2704 wrote to memory of 4504 2704 No42113-No42114.exe schtasks.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe PID 2704 wrote to memory of 4580 2704 No42113-No42114.exe No42113-No42114.exe -
outlook_office_path 1 IoCs
Processes:
No42113-No42114.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe -
outlook_win_path 1 IoCs
Processes:
No42113-No42114.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 No42113-No42114.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\No42113-No42114.exe"C:\Users\Admin\AppData\Local\Temp\No42113-No42114.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qgklKc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFCE.tmp"2⤵
- Creates scheduled task(s)
PID:4504 -
C:\Users\Admin\AppData\Local\Temp\No42113-No42114.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4580
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD534651b2e636629d65d77f1ad98cfe600
SHA14b4570e904e90c0368b5c906fdb035db5ae11da8
SHA25606fdef00e709e8b9aabb90b1dd11a884d32d6a40098196062bdd1f1fbd54d3f2
SHA512865b345c540f77c0f6f0f315f3366a0352ca93679c390a052a5e1258b22b11cef0f7dd242711cea20f543ad9fbbbd1f907da0a7b5c4fdf32167227ad98a3ba90