Analysis
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max time kernel
107s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 08:12
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
318KB
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MD5
1c16b629ec5d48e48e920a0644caa990
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SHA1
8bc931629416972eaada63b98f4ba7ff2d23aa87
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SHA256
b33710748d6656a3e2874da6fe3c8cee77b9af94d7b4bf60e9f2931fb31b84b0
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SHA512
5f12a8afdffe9ad7af46a5475bc67100462f0f8a3fcdd04ed04c8b9f1b379ef41b540e040fa6b34f8acdf2386cf8e26dc893c05bb628abf9a0f93beab9bcb43f
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SSDEEP
6144:ktigPxTPDvMe5F4KPoRaGvcaFZpip4yOkEtycUkHhSfbr5:kXJTPDL5aRLvxvpQ4VBH0fbr
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 52 3784 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1480 gntuud.exe 1056 gntuud.exe 4744 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3784 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-1-5-21-2891029575-1462575-1165213807-1000\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.
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Program crash 3 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exepid pid_target process target process 3884 4104 WerFault.exe file.exe 2924 1056 WerFault.exe gntuud.exe 1392 4744 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 3784 rundll32.exe 3784 rundll32.exe 3784 rundll32.exe 3784 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 4104 wrote to memory of 1480 4104 file.exe gntuud.exe PID 4104 wrote to memory of 1480 4104 file.exe gntuud.exe PID 4104 wrote to memory of 1480 4104 file.exe gntuud.exe PID 1480 wrote to memory of 2916 1480 gntuud.exe schtasks.exe PID 1480 wrote to memory of 2916 1480 gntuud.exe schtasks.exe PID 1480 wrote to memory of 2916 1480 gntuud.exe schtasks.exe PID 1480 wrote to memory of 3784 1480 gntuud.exe rundll32.exe PID 1480 wrote to memory of 3784 1480 gntuud.exe rundll32.exe PID 1480 wrote to memory of 3784 1480 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
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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:4104 -
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:1480 -
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:2916
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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:3784
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4104 -s 11362⤵
- Program crash
PID:3884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4104 -ip 41041⤵PID:1892
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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:1056 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 4362⤵
- Program crash
PID:2924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1056 -ip 10561⤵PID:1976
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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:4744 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 4402⤵
- Program crash
PID:1392
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4744 -ip 47441⤵PID:612
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
318KB
MD51c16b629ec5d48e48e920a0644caa990
SHA18bc931629416972eaada63b98f4ba7ff2d23aa87
SHA256b33710748d6656a3e2874da6fe3c8cee77b9af94d7b4bf60e9f2931fb31b84b0
SHA5125f12a8afdffe9ad7af46a5475bc67100462f0f8a3fcdd04ed04c8b9f1b379ef41b540e040fa6b34f8acdf2386cf8e26dc893c05bb628abf9a0f93beab9bcb43f
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Filesize
318KB
MD51c16b629ec5d48e48e920a0644caa990
SHA18bc931629416972eaada63b98f4ba7ff2d23aa87
SHA256b33710748d6656a3e2874da6fe3c8cee77b9af94d7b4bf60e9f2931fb31b84b0
SHA5125f12a8afdffe9ad7af46a5475bc67100462f0f8a3fcdd04ed04c8b9f1b379ef41b540e040fa6b34f8acdf2386cf8e26dc893c05bb628abf9a0f93beab9bcb43f
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Filesize
318KB
MD51c16b629ec5d48e48e920a0644caa990
SHA18bc931629416972eaada63b98f4ba7ff2d23aa87
SHA256b33710748d6656a3e2874da6fe3c8cee77b9af94d7b4bf60e9f2931fb31b84b0
SHA5125f12a8afdffe9ad7af46a5475bc67100462f0f8a3fcdd04ed04c8b9f1b379ef41b540e040fa6b34f8acdf2386cf8e26dc893c05bb628abf9a0f93beab9bcb43f
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Filesize
318KB
MD51c16b629ec5d48e48e920a0644caa990
SHA18bc931629416972eaada63b98f4ba7ff2d23aa87
SHA256b33710748d6656a3e2874da6fe3c8cee77b9af94d7b4bf60e9f2931fb31b84b0
SHA5125f12a8afdffe9ad7af46a5475bc67100462f0f8a3fcdd04ed04c8b9f1b379ef41b540e040fa6b34f8acdf2386cf8e26dc893c05bb628abf9a0f93beab9bcb43f
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Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d