Analysis
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max time kernel
179s -
max time network
190s -
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 21:41
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
206KB
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MD5
0799af8b2a64ae893d55e783cabc046c
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SHA1
a85db9123e672d31f6200988f51fbc03b353725a
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SHA256
c5193831b8213553f51767e00d377b0ac83dc51811a3d17bdc207599900a8a16
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SHA512
32054f92ac432c18ba69e51c2e9a770abdae4944cd2bdbaa48f19b79849b09fe8faf6ea88a999c63e8dff9a0cc390022cb2d0d4d9b71a7818fc11049d012fa10
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SSDEEP
3072:M7N9Ix/tp8aia5NjgG6AGulANKzq83Noyg0WDe9eXRr4o9KmWm7li:49ub8a7nUoldoyP6Dhr4CKmWAA
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
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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 47 3764 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 4040 gntuud.exe 2780 gntuud.exe 3540 gntuud.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
file.exegntuud.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3764 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.
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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.
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Program crash 3 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exepid pid_target process target process 872 4656 WerFault.exe file.exe 4556 2780 WerFault.exe gntuud.exe 3116 3540 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.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 3764 rundll32.exe 3764 rundll32.exe 3764 rundll32.exe 3764 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 4656 wrote to memory of 4040 4656 file.exe gntuud.exe PID 4656 wrote to memory of 4040 4656 file.exe gntuud.exe PID 4656 wrote to memory of 4040 4656 file.exe gntuud.exe PID 4040 wrote to memory of 4684 4040 gntuud.exe schtasks.exe PID 4040 wrote to memory of 4684 4040 gntuud.exe schtasks.exe PID 4040 wrote to memory of 4684 4040 gntuud.exe schtasks.exe PID 4040 wrote to memory of 3764 4040 gntuud.exe rundll32.exe PID 4040 wrote to memory of 3764 4040 gntuud.exe rundll32.exe PID 4040 wrote to memory of 3764 4040 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
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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:4656 -
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:4040 -
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:4684 -
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:3764 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 11322⤵
- Program crash
PID:872
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4656 -ip 46561⤵PID:460
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:2780 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 4242⤵
- Program crash
PID:4556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2780 -ip 27801⤵PID:2212
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:3540 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 2162⤵
- Program crash
PID:3116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3540 -ip 35401⤵PID:3652
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD50799af8b2a64ae893d55e783cabc046c
SHA1a85db9123e672d31f6200988f51fbc03b353725a
SHA256c5193831b8213553f51767e00d377b0ac83dc51811a3d17bdc207599900a8a16
SHA51232054f92ac432c18ba69e51c2e9a770abdae4944cd2bdbaa48f19b79849b09fe8faf6ea88a999c63e8dff9a0cc390022cb2d0d4d9b71a7818fc11049d012fa10
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD50799af8b2a64ae893d55e783cabc046c
SHA1a85db9123e672d31f6200988f51fbc03b353725a
SHA256c5193831b8213553f51767e00d377b0ac83dc51811a3d17bdc207599900a8a16
SHA51232054f92ac432c18ba69e51c2e9a770abdae4944cd2bdbaa48f19b79849b09fe8faf6ea88a999c63e8dff9a0cc390022cb2d0d4d9b71a7818fc11049d012fa10
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD50799af8b2a64ae893d55e783cabc046c
SHA1a85db9123e672d31f6200988f51fbc03b353725a
SHA256c5193831b8213553f51767e00d377b0ac83dc51811a3d17bdc207599900a8a16
SHA51232054f92ac432c18ba69e51c2e9a770abdae4944cd2bdbaa48f19b79849b09fe8faf6ea88a999c63e8dff9a0cc390022cb2d0d4d9b71a7818fc11049d012fa10
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD50799af8b2a64ae893d55e783cabc046c
SHA1a85db9123e672d31f6200988f51fbc03b353725a
SHA256c5193831b8213553f51767e00d377b0ac83dc51811a3d17bdc207599900a8a16
SHA51232054f92ac432c18ba69e51c2e9a770abdae4944cd2bdbaa48f19b79849b09fe8faf6ea88a999c63e8dff9a0cc390022cb2d0d4d9b71a7818fc11049d012fa10
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C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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memory/2780-146-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/2780-145-0x0000000000C8C000-0x0000000000CAB000-memory.dmpFilesize
124KB
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memory/3540-152-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/3540-151-0x0000000000D0C000-0x0000000000D2B000-memory.dmpFilesize
124KB
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memory/3764-147-0x0000000000000000-mapping.dmp
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memory/4040-143-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4040-140-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4040-139-0x0000000000E48000-0x0000000000E67000-memory.dmpFilesize
124KB
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memory/4040-135-0x0000000000000000-mapping.dmp
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memory/4656-142-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4656-141-0x0000000000C09000-0x0000000000C28000-memory.dmpFilesize
124KB
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memory/4656-132-0x0000000000C09000-0x0000000000C28000-memory.dmpFilesize
124KB
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memory/4656-134-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/4656-133-0x0000000000BB0000-0x0000000000BEE000-memory.dmpFilesize
248KB
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memory/4684-138-0x0000000000000000-mapping.dmp