Analysis
-
max time kernel
167s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2022 05:13
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
-
Target
file.exe
-
Size
206KB
-
MD5
5d3b91499683a2c3e3b9f6580cf3adb9
-
SHA1
c1c98a7dbe00d80c585574172805f9e52ef62d31
-
SHA256
0dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
-
SHA512
bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
-
SSDEEP
6144:B635xbr9ecaaYRpugcgRp0Qi+DRj74buFeN:B6H0caZ7DCuFu
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
-
Detect Amadey credential stealer module 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 29 4080 rundll32.exe -
Downloads MZ/PE file
-
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1452 gntuud.exe 420 gntuud.exe 3984 gntuud.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
gntuud.exefile.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation gntuud.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation file.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 4080 rundll32.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
-
Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Program crash 3 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exepid pid_target process target process 4964 4028 WerFault.exe file.exe 1848 420 WerFault.exe gntuud.exe 4220 3984 WerFault.exe gntuud.exe -
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 4 IoCs
Processes:
rundll32.exepid process 4080 rundll32.exe 4080 rundll32.exe 4080 rundll32.exe 4080 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 4028 wrote to memory of 1452 4028 file.exe gntuud.exe PID 4028 wrote to memory of 1452 4028 file.exe gntuud.exe PID 4028 wrote to memory of 1452 4028 file.exe gntuud.exe PID 1452 wrote to memory of 4864 1452 gntuud.exe schtasks.exe PID 1452 wrote to memory of 4864 1452 gntuud.exe schtasks.exe PID 1452 wrote to memory of 4864 1452 gntuud.exe schtasks.exe PID 1452 wrote to memory of 4080 1452 gntuud.exe rundll32.exe PID 1452 wrote to memory of 4080 1452 gntuud.exe rundll32.exe PID 1452 wrote to memory of 4080 1452 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F3⤵
- Creates scheduled task(s)
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 11362⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4028 -ip 40281⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 420 -s 4162⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 420 -ip 4201⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 4162⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3984 -ip 39841⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
-
C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
memory/420-147-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/420-146-0x0000000000B30000-0x0000000000B4F000-memory.dmpFilesize
124KB
-
memory/1452-140-0x0000000002710000-0x000000000274E000-memory.dmpFilesize
248KB
-
memory/1452-141-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/1452-135-0x0000000000000000-mapping.dmp
-
memory/1452-139-0x0000000000B1C000-0x0000000000B3B000-memory.dmpFilesize
124KB
-
memory/1452-144-0x0000000000B1C000-0x0000000000B3B000-memory.dmpFilesize
124KB
-
memory/3984-153-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/3984-152-0x0000000000E70000-0x0000000000E8F000-memory.dmpFilesize
124KB
-
memory/4028-132-0x0000000000D8D000-0x0000000000DAC000-memory.dmpFilesize
124KB
-
memory/4028-143-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/4028-142-0x0000000000D8D000-0x0000000000DAC000-memory.dmpFilesize
124KB
-
memory/4028-134-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/4028-133-0x0000000002820000-0x000000000285E000-memory.dmpFilesize
248KB
-
memory/4080-148-0x0000000000000000-mapping.dmp
-
memory/4864-138-0x0000000000000000-mapping.dmp