Analysis
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max time kernel
169s -
max time network
194s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
27/11/2022, 14:15
Static task
static1
Behavioral task
behavioral1
Sample
efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe
Resource
win10-20220812-en
General
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Target
efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe
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Size
209KB
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MD5
8ef9de35dad7f94140577af8e51cec3a
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SHA1
af2bfdf001c2dde2aec18fe3e6a555988d84686b
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SHA256
efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58
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SHA512
bfa5f7e9884f2e73ae19ed5a9cc4ed5a20951f9911282156ef6fcfe604d49af03175f76398754c589ac7e7dca22e2533a385d7547291a634d169d1ba0af3c0e1
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SSDEEP
3072:UITVOwqFXgWRtCgG1OLz5WwaEj7Q+hlfEsNtOv4Kd1wDBa9XGcZs6IO4Rj71nx:rVmpVtCZ1OVaEXQ+f3IvTdySGcZLX4B
Malware Config
Extracted
amadey
3.50
31.41.244.17/hfk3vK9/index.php
Signatures
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Detect Amadey credential stealer module 2 IoCs
resource yara_rule behavioral1/files/0x0002000000015527-333.dat amadey_cred_module behavioral1/files/0x0002000000015527-334.dat amadey_cred_module -
Blocklisted process makes network request 1 IoCs
flow pid Process 7 4728 rundll32.exe -
Executes dropped EXE 3 IoCs
pid Process 4060 gntuud.exe 3496 gntuud.exe 4456 gntuud.exe -
Loads dropped DLL 1 IoCs
pid Process 4728 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\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.
pid Process 3704 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4728 rundll32.exe 4728 rundll32.exe 4728 rundll32.exe 4728 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2436 wrote to memory of 4060 2436 efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe 66 PID 2436 wrote to memory of 4060 2436 efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe 66 PID 2436 wrote to memory of 4060 2436 efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe 66 PID 4060 wrote to memory of 3704 4060 gntuud.exe 67 PID 4060 wrote to memory of 3704 4060 gntuud.exe 67 PID 4060 wrote to memory of 3704 4060 gntuud.exe 67 PID 4060 wrote to memory of 4728 4060 gntuud.exe 70 PID 4060 wrote to memory of 4728 4060 gntuud.exe 70 PID 4060 wrote to memory of 4728 4060 gntuud.exe 70 -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe"C:\Users\Admin\AppData\Local\Temp\efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2436 -
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
PID:4060 -
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:3704
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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
PID:4728
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:3496
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:4456
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
209KB
MD58ef9de35dad7f94140577af8e51cec3a
SHA1af2bfdf001c2dde2aec18fe3e6a555988d84686b
SHA256efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58
SHA512bfa5f7e9884f2e73ae19ed5a9cc4ed5a20951f9911282156ef6fcfe604d49af03175f76398754c589ac7e7dca22e2533a385d7547291a634d169d1ba0af3c0e1
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Filesize
209KB
MD58ef9de35dad7f94140577af8e51cec3a
SHA1af2bfdf001c2dde2aec18fe3e6a555988d84686b
SHA256efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58
SHA512bfa5f7e9884f2e73ae19ed5a9cc4ed5a20951f9911282156ef6fcfe604d49af03175f76398754c589ac7e7dca22e2533a385d7547291a634d169d1ba0af3c0e1
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Filesize
209KB
MD58ef9de35dad7f94140577af8e51cec3a
SHA1af2bfdf001c2dde2aec18fe3e6a555988d84686b
SHA256efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58
SHA512bfa5f7e9884f2e73ae19ed5a9cc4ed5a20951f9911282156ef6fcfe604d49af03175f76398754c589ac7e7dca22e2533a385d7547291a634d169d1ba0af3c0e1
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Filesize
209KB
MD58ef9de35dad7f94140577af8e51cec3a
SHA1af2bfdf001c2dde2aec18fe3e6a555988d84686b
SHA256efcf2436a1c1a20eb798db02593889668a5dd36c1406b67343681ba46b64da58
SHA512bfa5f7e9884f2e73ae19ed5a9cc4ed5a20951f9911282156ef6fcfe604d49af03175f76398754c589ac7e7dca22e2533a385d7547291a634d169d1ba0af3c0e1
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Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d
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Filesize
126KB
MD5adbaf286228c46522e50371c4be31a03
SHA1a29d644c4663b2e2b2bd92046ba0df629537c297
SHA256d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0
SHA51274a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d