Analysis
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max time kernel
103s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 05:12
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
General
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Target
file.exe
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Size
206KB
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MD5
5d3b91499683a2c3e3b9f6580cf3adb9
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SHA1
c1c98a7dbe00d80c585574172805f9e52ef62d31
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SHA256
0dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
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SHA512
bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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SSDEEP
6144:B635xbr9ecaaYRpugcgRp0Qi+DRj74buFeN:B6H0caZ7DCuFu
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
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Detect Amadey credential stealer module 6 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module behavioral1/memory/1884-80-0x0000000000150000-0x0000000000174000-memory.dmp amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 5 1884 rundll32.exe -
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1692 gntuud.exe 1476 gntuud.exe 1736 gntuud.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exerundll32.exepid process 1456 file.exe 1456 file.exe 1884 rundll32.exe 1884 rundll32.exe 1884 rundll32.exe 1884 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-1-5-21-4063495947-34355257-727531523-1000\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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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 1884 rundll32.exe 1884 rundll32.exe 1884 rundll32.exe 1884 rundll32.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exegntuud.exetaskeng.exedescription pid process target process PID 1456 wrote to memory of 1692 1456 file.exe gntuud.exe PID 1456 wrote to memory of 1692 1456 file.exe gntuud.exe PID 1456 wrote to memory of 1692 1456 file.exe gntuud.exe PID 1456 wrote to memory of 1692 1456 file.exe gntuud.exe PID 1692 wrote to memory of 1680 1692 gntuud.exe schtasks.exe PID 1692 wrote to memory of 1680 1692 gntuud.exe schtasks.exe PID 1692 wrote to memory of 1680 1692 gntuud.exe schtasks.exe PID 1692 wrote to memory of 1680 1692 gntuud.exe schtasks.exe PID 552 wrote to memory of 1476 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1476 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1476 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1476 552 taskeng.exe gntuud.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 1692 wrote to memory of 1884 1692 gntuud.exe rundll32.exe PID 552 wrote to memory of 1736 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1736 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1736 552 taskeng.exe gntuud.exe PID 552 wrote to memory of 1736 552 taskeng.exe gntuud.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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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)
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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
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C:\Windows\system32\taskeng.exetaskeng.exe {EEDC4433-E593-4444-9B5A-8B899883D4F1} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe2⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
206KB
MD55d3b91499683a2c3e3b9f6580cf3adb9
SHA1c1c98a7dbe00d80c585574172805f9e52ef62d31
SHA2560dcfc3b930032d262d92ea5aa282ea1c331e6228f6aebba2b45e54fbe2098cad
SHA512bc971eeab1cdc7673813eba80ed53ba79435df3bad4bcfb4358f9b2a155a380e2072a23fcd6d7bce9496afe29e6f575d7033517fcddb86e22fd41de50f2496ed
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\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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memory/1456-58-0x0000000000BFB000-0x0000000000C1A000-memory.dmpFilesize
124KB
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memory/1456-61-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1456-60-0x0000000000220000-0x000000000025E000-memory.dmpFilesize
248KB
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memory/1456-54-0x0000000075B51000-0x0000000075B53000-memory.dmpFilesize
8KB
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memory/1476-71-0x0000000000C3B000-0x0000000000C5A000-memory.dmpFilesize
124KB
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memory/1476-72-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1476-68-0x0000000000000000-mapping.dmp
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memory/1680-63-0x0000000000000000-mapping.dmp
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memory/1692-65-0x0000000000B8B000-0x0000000000BAA000-memory.dmpFilesize
124KB
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memory/1692-67-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1692-66-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1692-57-0x0000000000000000-mapping.dmp
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memory/1736-81-0x0000000000000000-mapping.dmp
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memory/1736-85-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1884-73-0x0000000000000000-mapping.dmp
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memory/1884-80-0x0000000000150000-0x0000000000174000-memory.dmpFilesize
144KB