Analysis
- max time kernel
293s - max time network
360s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
07/12/2022, 23:31
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
12 signatures
150 seconds
General
- Target file.exe
- Size 323KB
- Sample221207-3hpddsbe31
- SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
- MD5 b63be04bd0d9c85ed6829cc745da6366
- SHA1 4eb0d706f6998c369ee4b5d6c718b5e13c26c13f
- SHA512 abb9dfc1b03b625fb8d816ecb9ff407e97c411fda139faa8c43d2f625af33d65699d3cc89a831df07b92e79c9bf2622d5de407e89cd2447c3a151360a0ec18a2
- SSDEEP 6144:Yns/VU5UjW8SPRXZggc1PbeNk35T3MYjodilf:Yns/W5UjW8SPRXZghDewhJl
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
amadey
Version
-
3.50
C2
-
31.41.244.237/jg94cVd30f/index.php
Signatures
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 2160 gntuud.exe - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation gntuud.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 4292 4512 WerFault.exe 80 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4036 schtasks.exe - Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 4512 wrote to memory of 2160 4512 file.exe 81 PID 4512 wrote to memory of 2160 4512 file.exe 81 PID 4512 wrote to memory of 2160 4512 file.exe 81 PID 2160 wrote to memory of 4036 2160 gntuud.exe 85 PID 2160 wrote to memory of 4036 2160 gntuud.exe 85 PID 2160 wrote to memory of 4036 2160 gntuud.exe 85 PID 2160 wrote to memory of 3680 2160 gntuud.exe 88 PID 2160 wrote to memory of 3680 2160 gntuud.exe 88 PID 2160 wrote to memory of 3680 2160 gntuud.exe 88 PID 3680 wrote to memory of 3052 3680 cmd.exe 90 PID 3680 wrote to memory of 3052 3680 cmd.exe 90 PID 3680 wrote to memory of 3052 3680 cmd.exe 90 PID 3680 wrote to memory of 5080 3680 cmd.exe 92 PID 3680 wrote to memory of 5080 3680 cmd.exe 92 PID 3680 wrote to memory of 5080 3680 cmd.exe 92 PID 3680 wrote to memory of 2876 3680 cmd.exe 93 PID 3680 wrote to memory of 2876 3680 cmd.exe 93 PID 3680 wrote to memory of 2876 3680 cmd.exe 93 PID 3680 wrote to memory of 3764 3680 cmd.exe 94 PID 3680 wrote to memory of 3764 3680 cmd.exe 94 PID 3680 wrote to memory of 3764 3680 cmd.exe 94 PID 3680 wrote to memory of 2684 3680 cmd.exe 95 PID 3680 wrote to memory of 2684 3680 cmd.exe 95 PID 3680 wrote to memory of 2684 3680 cmd.exe 95 PID 3680 wrote to memory of 3272 3680 cmd.exe 96 PID 3680 wrote to memory of 3272 3680 cmd.exe 96 PID 3680 wrote to memory of 3272 3680 cmd.exe 96
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:4512 -
C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2160 -
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\9c69749b54\gntuud.exe" /F3⤵
- Creates scheduled task(s)
PID:4036
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k echo Y|CACLS "gntuud.exe" /P "Admin:N"&&CACLS "gntuud.exe" /P "Admin:R" /E&&echo Y|CACLS "..\9c69749b54" /P "Admin:N"&&CACLS "..\9c69749b54" /P "Admin:R" /E&&Exit3⤵
- Suspicious use of WriteProcessMemory
PID:3680 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:3052
-
-
C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:N"4⤵PID:5080
-
-
C:\Windows\SysWOW64\cacls.exeCACLS "gntuud.exe" /P "Admin:R" /E4⤵PID:2876
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵PID:3764
-
-
C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:N"4⤵PID:2684
-
-
C:\Windows\SysWOW64\cacls.exeCACLS "..\9c69749b54" /P "Admin:R" /E4⤵PID:3272
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 11402⤵
- Program crash
PID:4292
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4512 -ip 45121⤵PID:3600
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 323KB
- SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
- MD5 b63be04bd0d9c85ed6829cc745da6366
- SHA1 4eb0d706f6998c369ee4b5d6c718b5e13c26c13f
- SHA512 abb9dfc1b03b625fb8d816ecb9ff407e97c411fda139faa8c43d2f625af33d65699d3cc89a831df07b92e79c9bf2622d5de407e89cd2447c3a151360a0ec18a2
- SSDEEP 6144:Yns/VU5UjW8SPRXZggc1PbeNk35T3MYjodilf:Yns/W5UjW8SPRXZghDewhJl
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\9c69749b54\gntuud.exe
- Size 323KB
- SHA256 9632e27d643501e3c0dd0b772500c007e7e538317c449d2b682a401550958089
- MD5 b63be04bd0d9c85ed6829cc745da6366
- SHA1 4eb0d706f6998c369ee4b5d6c718b5e13c26c13f
- SHA512 abb9dfc1b03b625fb8d816ecb9ff407e97c411fda139faa8c43d2f625af33d65699d3cc89a831df07b92e79c9bf2622d5de407e89cd2447c3a151360a0ec18a2
- SSDEEP 6144:Yns/VU5UjW8SPRXZggc1PbeNk35T3MYjodilf:Yns/W5UjW8SPRXZghDewhJl
- MD5 SHA1 SHA512 SSDEEP