Analysis
-
max time kernel
120s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 23:33
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
-
Target
file.exe
-
Size
227KB
-
MD5
114b5b705fdfe9aab9c96c95a486e862
-
SHA1
cc1484deb9151c9947da10d8828b87bc45d078b8
-
SHA256
c8a47f40b677fe913a3bc2c13ab9252790f2ca7492e25a55f553bc62a9f6712c
-
SHA512
59373d9952a144679c6b37cc9cdfbe67d1a2623e791d84c8ae3b3ec18be9259d7e1d1c61ecab87933756965bcbceb7f22c27915ff1d3399225ea54295aa20bcd
-
SSDEEP
3072:kcHEpYUaUKMUK6Vu5xqT+3IvtrVdg815dL9ZwJ5UeCwL6EX/pG7ZrDjh8nRn081x:krrKMUK6z+3IdVy814JxL/BAp2Rn0O5
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 44 3652 rundll32.exe -
Downloads MZ/PE file
-
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1096 gntuud.exe 1068 gntuud.exe 1192 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation gntuud.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3652 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-1-5-21-2891029575-1462575-1165213807-1000\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 1648 3108 WerFault.exe file.exe 1768 1068 WerFault.exe gntuud.exe 3808 1192 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 3652 rundll32.exe 3652 rundll32.exe 3652 rundll32.exe 3652 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 3108 wrote to memory of 1096 3108 file.exe gntuud.exe PID 3108 wrote to memory of 1096 3108 file.exe gntuud.exe PID 3108 wrote to memory of 1096 3108 file.exe gntuud.exe PID 1096 wrote to memory of 4008 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 4008 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 4008 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 3652 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 3652 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 3652 1096 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\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
PID:3108 -
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
PID:1096 -
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)
PID:4008 -
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
PID:3652 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3108 -s 11362⤵
- Program crash
PID:1648
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3108 -ip 31081⤵PID:1376
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:1068 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 4162⤵
- Program crash
PID:1768
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1068 -ip 10681⤵PID:948
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:1192 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1192 -s 4202⤵
- Program crash
PID:3808
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1192 -ip 11921⤵PID:4184
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
227KB
MD5114b5b705fdfe9aab9c96c95a486e862
SHA1cc1484deb9151c9947da10d8828b87bc45d078b8
SHA256c8a47f40b677fe913a3bc2c13ab9252790f2ca7492e25a55f553bc62a9f6712c
SHA51259373d9952a144679c6b37cc9cdfbe67d1a2623e791d84c8ae3b3ec18be9259d7e1d1c61ecab87933756965bcbceb7f22c27915ff1d3399225ea54295aa20bcd
-
Filesize
227KB
MD5114b5b705fdfe9aab9c96c95a486e862
SHA1cc1484deb9151c9947da10d8828b87bc45d078b8
SHA256c8a47f40b677fe913a3bc2c13ab9252790f2ca7492e25a55f553bc62a9f6712c
SHA51259373d9952a144679c6b37cc9cdfbe67d1a2623e791d84c8ae3b3ec18be9259d7e1d1c61ecab87933756965bcbceb7f22c27915ff1d3399225ea54295aa20bcd
-
Filesize
227KB
MD5114b5b705fdfe9aab9c96c95a486e862
SHA1cc1484deb9151c9947da10d8828b87bc45d078b8
SHA256c8a47f40b677fe913a3bc2c13ab9252790f2ca7492e25a55f553bc62a9f6712c
SHA51259373d9952a144679c6b37cc9cdfbe67d1a2623e791d84c8ae3b3ec18be9259d7e1d1c61ecab87933756965bcbceb7f22c27915ff1d3399225ea54295aa20bcd
-
Filesize
227KB
MD5114b5b705fdfe9aab9c96c95a486e862
SHA1cc1484deb9151c9947da10d8828b87bc45d078b8
SHA256c8a47f40b677fe913a3bc2c13ab9252790f2ca7492e25a55f553bc62a9f6712c
SHA51259373d9952a144679c6b37cc9cdfbe67d1a2623e791d84c8ae3b3ec18be9259d7e1d1c61ecab87933756965bcbceb7f22c27915ff1d3399225ea54295aa20bcd
-
Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d