Analysis
-
max time kernel
215s -
max time network
238s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 18:27
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
-
Target
file.exe
-
Size
226KB
-
MD5
dedd5c0ac85096e282d51b4784ca2aa4
-
SHA1
18caac5cb1d4d084fa2654477af97c58e95c1281
-
SHA256
6fd43674da08e9cb4e4a6945c2ac41ae6ec1042cc177343797937465da74e263
-
SHA512
554c046c124cb6a1b1538ee1037d36ef5617753743f6199d8192563dc38de777e92775198ba3bce1b49ebcd24092c40b767ca9e16e6c96889fddfb146ad492b4
-
SSDEEP
6144:LFQ9jysBHl7PnsmNF9OlRYf9E0Bx4mklpZZT+p51:iMsBHlDGYPVklp7+N
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 73 1456 rundll32.exe -
Downloads MZ/PE file
-
Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 220 gntuud.exe 3472 gntuud.exe 2436 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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1456 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-1-5-21-4246620582-653642754-1174164128-1000\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 1244 1344 WerFault.exe file.exe 2268 3472 WerFault.exe gntuud.exe 1124 2436 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 1456 rundll32.exe 1456 rundll32.exe 1456 rundll32.exe 1456 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
file.exegntuud.exedescription pid process target process PID 1344 wrote to memory of 220 1344 file.exe gntuud.exe PID 1344 wrote to memory of 220 1344 file.exe gntuud.exe PID 1344 wrote to memory of 220 1344 file.exe gntuud.exe PID 220 wrote to memory of 3424 220 gntuud.exe schtasks.exe PID 220 wrote to memory of 3424 220 gntuud.exe schtasks.exe PID 220 wrote to memory of 3424 220 gntuud.exe schtasks.exe PID 220 wrote to memory of 1456 220 gntuud.exe rundll32.exe PID 220 wrote to memory of 1456 220 gntuud.exe rundll32.exe PID 220 wrote to memory of 1456 220 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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
PID:1344 -
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:220 -
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:3424 -
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:1456 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 8962⤵
- Program crash
PID:1244
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1344 -ip 13441⤵PID:4496
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:3472 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 4162⤵
- Program crash
PID:2268
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3472 -ip 34721⤵PID:4220
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:2436 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 4162⤵
- Program crash
PID:1124
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2436 -ip 24361⤵PID:4844
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
226KB
MD5dedd5c0ac85096e282d51b4784ca2aa4
SHA118caac5cb1d4d084fa2654477af97c58e95c1281
SHA2566fd43674da08e9cb4e4a6945c2ac41ae6ec1042cc177343797937465da74e263
SHA512554c046c124cb6a1b1538ee1037d36ef5617753743f6199d8192563dc38de777e92775198ba3bce1b49ebcd24092c40b767ca9e16e6c96889fddfb146ad492b4
-
Filesize
226KB
MD5dedd5c0ac85096e282d51b4784ca2aa4
SHA118caac5cb1d4d084fa2654477af97c58e95c1281
SHA2566fd43674da08e9cb4e4a6945c2ac41ae6ec1042cc177343797937465da74e263
SHA512554c046c124cb6a1b1538ee1037d36ef5617753743f6199d8192563dc38de777e92775198ba3bce1b49ebcd24092c40b767ca9e16e6c96889fddfb146ad492b4
-
Filesize
226KB
MD5dedd5c0ac85096e282d51b4784ca2aa4
SHA118caac5cb1d4d084fa2654477af97c58e95c1281
SHA2566fd43674da08e9cb4e4a6945c2ac41ae6ec1042cc177343797937465da74e263
SHA512554c046c124cb6a1b1538ee1037d36ef5617753743f6199d8192563dc38de777e92775198ba3bce1b49ebcd24092c40b767ca9e16e6c96889fddfb146ad492b4
-
Filesize
226KB
MD5dedd5c0ac85096e282d51b4784ca2aa4
SHA118caac5cb1d4d084fa2654477af97c58e95c1281
SHA2566fd43674da08e9cb4e4a6945c2ac41ae6ec1042cc177343797937465da74e263
SHA512554c046c124cb6a1b1538ee1037d36ef5617753743f6199d8192563dc38de777e92775198ba3bce1b49ebcd24092c40b767ca9e16e6c96889fddfb146ad492b4
-
Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
-
Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d