Analysis
- max time kernel
100s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
27/11/2022, 02:51
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
15 signatures
150 seconds
General
- Target file.exe
- Size 206KB
- Sample221127-db6awsdg87
- SHA256 1aba9ec8b802b12e0100327b1e14f41727fa88907a1d96f90eb28587c011e6ec
- MD5 ab898823c245eadff4bb1b670ed83c8e
- SHA1 c8af9fee1088cb029be9c836922051dff24bee09
- SHA512 016611b63770c0a9ac498caf925496c0cf8771e5d213816fe13d2ee1ca87e0201ea16bbd03129d541b60a49f2d8ee34f98736c163ce3812f428878881c07a2b3
- SSDEEP 3072:X38KyamcgBg3LB55eKOFPYpaUwkQklWr/08mwAeqndWRyTgYEeShyyL4IfBa1NvF:czaWg35UWNNFlC0CAAC+eShLkI419F
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
amadey
Version
-
3.50
C2
-
31.41.244.17/hfk3vK9/index.php
Signatures
- Detect Amadey credential stealer module 2 IoCs
resource yara_rule behavioral2/files/0x0001000000022e00-149.dat amadey_cred_module behavioral2/files/0x0001000000022e00-150.dat amadey_cred_module - Blocklisted process makes network request 1 IoCs
flow pid Process 36 1308 rundll32.exe - Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
pid Process 3188 gntuud.exe 4908 gntuud.exe 1296 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-1-5-21-929662420-1054238289-2961194603-1000\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
pid 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
description 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
pid pid_target Process procid_target 548 3376 WerFault.exe 79 1752 4908 WerFault.exe 91 3640 1296 WerFault.exe 98 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1644 schtasks.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3376 wrote to memory of 3188 3376 file.exe 80 PID 3376 wrote to memory of 3188 3376 file.exe 80 PID 3376 wrote to memory of 3188 3376 file.exe 80 PID 3188 wrote to memory of 1644 3188 gntuud.exe 84 PID 3188 wrote to memory of 1644 3188 gntuud.exe 84 PID 3188 wrote to memory of 1644 3188 gntuud.exe 84 PID 3188 wrote to memory of 1308 3188 gntuud.exe 97 PID 3188 wrote to memory of 1308 3188 gntuud.exe 97 PID 3188 wrote to memory of 1308 3188 gntuud.exe 97 - outlook_win_path 1 IoCs
description 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
PID:3376 -
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:3188 -
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:1644
-
-
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:1308
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 11402⤵
- Program crash
PID:548
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3376 -ip 33761⤵PID:3604
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:4908 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 4202⤵
- Program crash
PID:1752
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4908 -ip 49081⤵PID:3052
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:1296 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 4282⤵
- Program crash
PID:3640
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1296 -ip 12961⤵PID:4600
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
- Size 206KB
- SHA256 1aba9ec8b802b12e0100327b1e14f41727fa88907a1d96f90eb28587c011e6ec
- MD5 ab898823c245eadff4bb1b670ed83c8e
- SHA1 c8af9fee1088cb029be9c836922051dff24bee09
- SHA512 016611b63770c0a9ac498caf925496c0cf8771e5d213816fe13d2ee1ca87e0201ea16bbd03129d541b60a49f2d8ee34f98736c163ce3812f428878881c07a2b3
- SSDEEP 3072:X38KyamcgBg3LB55eKOFPYpaUwkQklWr/08mwAeqndWRyTgYEeShyyL4IfBa1NvF:czaWg35UWNNFlC0CAAC+eShLkI419F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
- Size 206KB
- SHA256 1aba9ec8b802b12e0100327b1e14f41727fa88907a1d96f90eb28587c011e6ec
- MD5 ab898823c245eadff4bb1b670ed83c8e
- SHA1 c8af9fee1088cb029be9c836922051dff24bee09
- SHA512 016611b63770c0a9ac498caf925496c0cf8771e5d213816fe13d2ee1ca87e0201ea16bbd03129d541b60a49f2d8ee34f98736c163ce3812f428878881c07a2b3
- SSDEEP 3072:X38KyamcgBg3LB55eKOFPYpaUwkQklWr/08mwAeqndWRyTgYEeShyyL4IfBa1NvF:czaWg35UWNNFlC0CAAC+eShLkI419F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
- Size 206KB
- SHA256 1aba9ec8b802b12e0100327b1e14f41727fa88907a1d96f90eb28587c011e6ec
- MD5 ab898823c245eadff4bb1b670ed83c8e
- SHA1 c8af9fee1088cb029be9c836922051dff24bee09
- SHA512 016611b63770c0a9ac498caf925496c0cf8771e5d213816fe13d2ee1ca87e0201ea16bbd03129d541b60a49f2d8ee34f98736c163ce3812f428878881c07a2b3
- SSDEEP 3072:X38KyamcgBg3LB55eKOFPYpaUwkQklWr/08mwAeqndWRyTgYEeShyyL4IfBa1NvF:czaWg35UWNNFlC0CAAC+eShLkI419F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
- Size 206KB
- SHA256 1aba9ec8b802b12e0100327b1e14f41727fa88907a1d96f90eb28587c011e6ec
- MD5 ab898823c245eadff4bb1b670ed83c8e
- SHA1 c8af9fee1088cb029be9c836922051dff24bee09
- SHA512 016611b63770c0a9ac498caf925496c0cf8771e5d213816fe13d2ee1ca87e0201ea16bbd03129d541b60a49f2d8ee34f98736c163ce3812f428878881c07a2b3
- SSDEEP 3072:X38KyamcgBg3LB55eKOFPYpaUwkQklWr/08mwAeqndWRyTgYEeShyyL4IfBa1NvF:czaWg35UWNNFlC0CAAC+eShLkI419F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
- Size 126KB
- SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
- MD5 adbaf286228c46522e50371c4be31a03
- SHA1 a29d644c4663b2e2b2bd92046ba0df629537c297
- SHA512 74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
- SSDEEP 3072:ox7pOYzBekBmWDWCMq6As523HeS9FAiZ87vO2rlL3Rnm9:ox7ZNhB/dMq6AO0a7vVlT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
- Size 126KB
- SHA256 d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
- MD5 adbaf286228c46522e50371c4be31a03
- SHA1 a29d644c4663b2e2b2bd92046ba0df629537c297
- SHA512 74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
- SSDEEP 3072:ox7pOYzBekBmWDWCMq6As523HeS9FAiZ87vO2rlL3Rnm9:ox7ZNhB/dMq6AO0a7vVlT
- MD5 SHA1 SHA512 SSDEEP