Analysis
-
max time kernel
106s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
26-11-2022 12:01
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
General
-
Target
file.exe
-
Size
205KB
-
MD5
ec2c47ac8beff1c0b8fae12cdc0f8e08
-
SHA1
c6e4788bdf85b0d8ff4f65de44023d6a6a998f9a
-
SHA256
ffa0f7dd952ac81d4b0e77b6ac149c408983ee740d4d76c7a103fd88914faf92
-
SHA512
d23bfae4c960b88ab9289ff91d6fe25fe193dd598ae44233d3d87df6aecc9a9b01379b72144a84176439698d0fa6a5aebb72957f1069083d8345af093b43a466
-
SSDEEP
3072:oTDf9TIcv5reaAmm30NrE3quOzKfHVqfwSI5bB9ms5dSmDt+dM5A7IiyGBJ19n:m1TIk/AwrYOzhfwTbBMSYmEcD0/
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
-
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 43 1308 rundll32.exe -
Downloads MZ/PE file
-
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 4608 gntuud.exe 368 gntuud.exe 1392 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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1308 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.
-
Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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.
-
Program crash 3 IoCs
Processes:
WerFault.exeWerFault.exeWerFault.exepid pid_target process target process 4884 4972 WerFault.exe file.exe 3020 368 WerFault.exe gntuud.exe 1384 1392 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.
-
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 4972 wrote to memory of 4608 4972 file.exe gntuud.exe PID 4972 wrote to memory of 4608 4972 file.exe gntuud.exe PID 4972 wrote to memory of 4608 4972 file.exe gntuud.exe PID 4608 wrote to memory of 1128 4608 gntuud.exe schtasks.exe PID 4608 wrote to memory of 1128 4608 gntuud.exe schtasks.exe PID 4608 wrote to memory of 1128 4608 gntuud.exe schtasks.exe PID 4608 wrote to memory of 1308 4608 gntuud.exe rundll32.exe PID 4608 wrote to memory of 1308 4608 gntuud.exe rundll32.exe PID 4608 wrote to memory of 1308 4608 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
-
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
-
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
-
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)
-
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
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4972 -s 11442⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4972 -ip 49721⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 4162⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 368 -ip 3681⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 4162⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1392 -ip 13921⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD5ec2c47ac8beff1c0b8fae12cdc0f8e08
SHA1c6e4788bdf85b0d8ff4f65de44023d6a6a998f9a
SHA256ffa0f7dd952ac81d4b0e77b6ac149c408983ee740d4d76c7a103fd88914faf92
SHA512d23bfae4c960b88ab9289ff91d6fe25fe193dd598ae44233d3d87df6aecc9a9b01379b72144a84176439698d0fa6a5aebb72957f1069083d8345af093b43a466
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD5ec2c47ac8beff1c0b8fae12cdc0f8e08
SHA1c6e4788bdf85b0d8ff4f65de44023d6a6a998f9a
SHA256ffa0f7dd952ac81d4b0e77b6ac149c408983ee740d4d76c7a103fd88914faf92
SHA512d23bfae4c960b88ab9289ff91d6fe25fe193dd598ae44233d3d87df6aecc9a9b01379b72144a84176439698d0fa6a5aebb72957f1069083d8345af093b43a466
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD5ec2c47ac8beff1c0b8fae12cdc0f8e08
SHA1c6e4788bdf85b0d8ff4f65de44023d6a6a998f9a
SHA256ffa0f7dd952ac81d4b0e77b6ac149c408983ee740d4d76c7a103fd88914faf92
SHA512d23bfae4c960b88ab9289ff91d6fe25fe193dd598ae44233d3d87df6aecc9a9b01379b72144a84176439698d0fa6a5aebb72957f1069083d8345af093b43a466
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
205KB
MD5ec2c47ac8beff1c0b8fae12cdc0f8e08
SHA1c6e4788bdf85b0d8ff4f65de44023d6a6a998f9a
SHA256ffa0f7dd952ac81d4b0e77b6ac149c408983ee740d4d76c7a103fd88914faf92
SHA512d23bfae4c960b88ab9289ff91d6fe25fe193dd598ae44233d3d87df6aecc9a9b01379b72144a84176439698d0fa6a5aebb72957f1069083d8345af093b43a466
-
C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
memory/368-147-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/368-146-0x0000000000D60000-0x0000000000D7F000-memory.dmpFilesize
124KB
-
memory/1128-140-0x0000000000000000-mapping.dmp
-
memory/1308-148-0x0000000000000000-mapping.dmp
-
memory/1392-153-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/1392-152-0x0000000000B10000-0x0000000000B2F000-memory.dmpFilesize
124KB
-
memory/4608-142-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/4608-144-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/4608-143-0x0000000000BBC000-0x0000000000BDB000-memory.dmpFilesize
124KB
-
memory/4608-135-0x0000000000000000-mapping.dmp
-
memory/4608-141-0x0000000000BBC000-0x0000000000BDB000-memory.dmpFilesize
124KB
-
memory/4972-138-0x0000000000D0D000-0x0000000000D2C000-memory.dmpFilesize
124KB
-
memory/4972-133-0x0000000000C80000-0x0000000000CBE000-memory.dmpFilesize
248KB
-
memory/4972-134-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB
-
memory/4972-132-0x0000000000D0D000-0x0000000000D2C000-memory.dmpFilesize
124KB
-
memory/4972-139-0x0000000000400000-0x0000000000AE5000-memory.dmpFilesize
6.9MB