Analysis
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max time kernel
257s -
max time network
357s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 10:41
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
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Target
file.exe
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Size
205KB
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MD5
5a542fd73ba8dd1269bd0e44370d4193
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SHA1
3d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
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SHA256
857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
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SHA512
cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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SSDEEP
3072:iVZzpIn2yYh52Zm8f+SysrsEaLYztdHk7+6zZXbReR0Um5ajh1HKHT:8in2ynmSz/Hiv14y5Iro
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 \Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module 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 behavioral1/memory/1844-78-0x0000000000130000-0x0000000000154000-memory.dmp amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 7 1844 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
gntuud.exegntuud.exepid process 1176 gntuud.exe 900 gntuud.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exerundll32.exepid process 468 file.exe 468 file.exe 1844 rundll32.exe 1844 rundll32.exe 1844 rundll32.exe 1844 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-1-5-21-1214520366-621468234-4062160515-1000\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 1844 rundll32.exe 1844 rundll32.exe 1844 rundll32.exe 1844 rundll32.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
file.exegntuud.exetaskeng.exedescription pid process target process PID 468 wrote to memory of 1176 468 file.exe gntuud.exe PID 468 wrote to memory of 1176 468 file.exe gntuud.exe PID 468 wrote to memory of 1176 468 file.exe gntuud.exe PID 468 wrote to memory of 1176 468 file.exe gntuud.exe PID 1176 wrote to memory of 764 1176 gntuud.exe schtasks.exe PID 1176 wrote to memory of 764 1176 gntuud.exe schtasks.exe PID 1176 wrote to memory of 764 1176 gntuud.exe schtasks.exe PID 1176 wrote to memory of 764 1176 gntuud.exe schtasks.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1176 wrote to memory of 1844 1176 gntuud.exe rundll32.exe PID 1652 wrote to memory of 900 1652 taskeng.exe gntuud.exe PID 1652 wrote to memory of 900 1652 taskeng.exe gntuud.exe PID 1652 wrote to memory of 900 1652 taskeng.exe gntuud.exe PID 1652 wrote to memory of 900 1652 taskeng.exe gntuud.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\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 {72658C9B-487D-47CA-8CBE-14FF45D44B43} S-1-5-21-1214520366-621468234-4062160515-1000:VDWSWJJD\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
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
205KB
MD55a542fd73ba8dd1269bd0e44370d4193
SHA13d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
SHA256857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
SHA512cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD55a542fd73ba8dd1269bd0e44370d4193
SHA13d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
SHA256857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
SHA512cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD55a542fd73ba8dd1269bd0e44370d4193
SHA13d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
SHA256857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
SHA512cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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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
205KB
MD55a542fd73ba8dd1269bd0e44370d4193
SHA13d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
SHA256857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
SHA512cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD55a542fd73ba8dd1269bd0e44370d4193
SHA13d9eec7f3d63c9bdc8bb820bd83dec5d4893886a
SHA256857bd69297b5939cdc11e2c518c43d015c60c11198c923e828359dfab184f095
SHA512cd8a7cbc8c26f1f51247539e8b6f9b0bf48a492282f02b386d843c144db85b12ea08ce02774bb3a0076fa6fb515162bfd27b4e5db36feb9bfa60c96161e85066
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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/468-57-0x0000000000C3B000-0x0000000000C5A000-memory.dmpFilesize
124KB
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memory/468-61-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/468-54-0x0000000075E81000-0x0000000075E83000-memory.dmpFilesize
8KB
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memory/468-65-0x0000000000C3B000-0x0000000000C5A000-memory.dmpFilesize
124KB
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memory/468-59-0x0000000000220000-0x000000000025E000-memory.dmpFilesize
248KB
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memory/764-66-0x0000000000000000-mapping.dmp
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memory/900-79-0x0000000000000000-mapping.dmp
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memory/900-83-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/900-82-0x00000000002EB000-0x000000000030A000-memory.dmpFilesize
124KB
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memory/1176-64-0x0000000000220000-0x000000000025E000-memory.dmpFilesize
248KB
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memory/1176-63-0x0000000000C7B000-0x0000000000C9A000-memory.dmpFilesize
124KB
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memory/1176-58-0x0000000000000000-mapping.dmp
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memory/1176-70-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1176-69-0x0000000000C7B000-0x0000000000C9A000-memory.dmpFilesize
124KB
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memory/1176-68-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1844-71-0x0000000000000000-mapping.dmp
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memory/1844-78-0x0000000000130000-0x0000000000154000-memory.dmpFilesize
144KB