Analysis
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max time kernel
116s -
max time network
167s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 03:07
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
205KB
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MD5
1541ba7e50e778f758fb3d704c8756b7
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SHA1
95811e024e11472481f1658e72d580ff57c2fc65
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SHA256
6a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
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SHA512
29c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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SSDEEP
3072:PQkW/BsH4kSe65KU5smmJOLnF693YLAiw3kzI8zsk43Ni46Zm3k0ShBe:PQG4kNU5mZ3jfkz8kaiDZKk0Shc
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
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Detect Amadey credential stealer module 5 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 -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 5 580 rundll32.exe -
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1096 gntuud.exe 648 gntuud.exe 968 gntuud.exe -
Loads dropped DLL 6 IoCs
Processes:
file.exerundll32.exepid process 1952 file.exe 1952 file.exe 580 rundll32.exe 580 rundll32.exe 580 rundll32.exe 580 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-1-5-21-2292972927-2705560509-2768824231-1000\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 580 rundll32.exe 580 rundll32.exe 580 rundll32.exe 580 rundll32.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
file.exegntuud.exetaskeng.exedescription pid process target process PID 1952 wrote to memory of 1096 1952 file.exe gntuud.exe PID 1952 wrote to memory of 1096 1952 file.exe gntuud.exe PID 1952 wrote to memory of 1096 1952 file.exe gntuud.exe PID 1952 wrote to memory of 1096 1952 file.exe gntuud.exe PID 1096 wrote to memory of 1252 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 1252 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 1252 1096 gntuud.exe schtasks.exe PID 1096 wrote to memory of 1252 1096 gntuud.exe schtasks.exe PID 1280 wrote to memory of 648 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 648 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 648 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 648 1280 taskeng.exe gntuud.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1096 wrote to memory of 580 1096 gntuud.exe rundll32.exe PID 1280 wrote to memory of 968 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 968 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 968 1280 taskeng.exe gntuud.exe PID 1280 wrote to memory of 968 1280 taskeng.exe gntuud.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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 {AD567E55-9704-44B4-8F00-A765BDA531AD} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\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
205KB
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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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
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD51541ba7e50e778f758fb3d704c8756b7
SHA195811e024e11472481f1658e72d580ff57c2fc65
SHA2566a8ff340b0778558c143418ebd0cda9ec2a3454142ce3e5dec6e4b5d47609f45
SHA51229c6ef2bd98ed6485180ad9453a099424dab08d048053a5cf10c77d81e3f4819c32f85cf65a5f98bd22a41c70c7fbbd42455d0366e81f9c987182131f0f9a15b
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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/580-72-0x0000000000000000-mapping.dmp
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memory/648-68-0x0000000000000000-mapping.dmp
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memory/648-71-0x000000000026B000-0x000000000028A000-memory.dmpFilesize
124KB
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memory/648-73-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/968-80-0x0000000000000000-mapping.dmp
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memory/968-83-0x0000000000F4B000-0x0000000000F6A000-memory.dmpFilesize
124KB
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memory/968-84-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1096-67-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1096-66-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1096-65-0x0000000000C6B000-0x0000000000C8A000-memory.dmpFilesize
124KB
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memory/1096-57-0x0000000000000000-mapping.dmp
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memory/1252-63-0x0000000000000000-mapping.dmp
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memory/1952-54-0x00000000758C1000-0x00000000758C3000-memory.dmpFilesize
8KB
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memory/1952-61-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
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memory/1952-60-0x0000000000310000-0x000000000034E000-memory.dmpFilesize
248KB
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memory/1952-59-0x0000000000BAB000-0x0000000000BCA000-memory.dmpFilesize
124KB