Analysis
- max time kernel
151s - max time network
145s - platform
windows7_x64 - resource
win7v20201028 - submitted
10/11/2020, 11:08
Static task
static1
Behavioral task
behavioral1
Sample
4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe
- Size 1.1MB
- Sample201110-egejp9l5lx
- SHA256 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0
- MD5 ca3cc16852a7648306ea789348ba3286
- SHA1 9df06b544edf9b010f3758ce8e992bb88c4ea8df
- SHA512 c8924f497e485abf8eddd7afd5c6235de785d166fc1aeec808eb1895f2c8bf3a0e562f47a8dd66033d615b9cfa22e667e030b2583c3b6bf7cf5520866758dcb0
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
njrat
Version
-
0.7d
Botnet
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redlanhopto
C2
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redlan.hopto.org:5553
Mutex
-
d25d360449d7bab3069e1b77b3a914a3
Attributes
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reg_key
d25d360449d7bab3069e1b77b3a914a3
-
splitter
|'|'|
Signatures
- Executes dropped EXE 2 IoCs
pid Process 748 data.exe 1280 data.exe - Modifies Windows Firewall 1 TTPs
- Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1056 set thread context of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 748 set thread context of 1004 748 data.exe 36 - autoit_exe 3 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/files/0x00040000000130f2-5.dat autoit_exe behavioral1/files/0x00040000000130f2-7.dat autoit_exe behavioral1/files/0x00040000000130f2-13.dat autoit_exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1440 schtasks.exe 980 schtasks.exe - Suspicious use of AdjustPrivilegeToken 21 IoCs
description pid Process Token: SeDebugPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe Token: 33 1252 RegAsm.exe Token: SeIncBasePriorityPrivilege 1252 RegAsm.exe - Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1252 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 29 PID 1056 wrote to memory of 1440 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 30 PID 1056 wrote to memory of 1440 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 30 PID 1056 wrote to memory of 1440 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 30 PID 1056 wrote to memory of 1440 1056 4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe 30 PID 1252 wrote to memory of 1224 1252 RegAsm.exe 32 PID 1252 wrote to memory of 1224 1252 RegAsm.exe 32 PID 1252 wrote to memory of 1224 1252 RegAsm.exe 32 PID 1252 wrote to memory of 1224 1252 RegAsm.exe 32 PID 636 wrote to memory of 748 636 taskeng.exe 35 PID 636 wrote to memory of 748 636 taskeng.exe 35 PID 636 wrote to memory of 748 636 taskeng.exe 35 PID 636 wrote to memory of 748 636 taskeng.exe 35 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 1004 748 data.exe 36 PID 748 wrote to memory of 980 748 data.exe 37 PID 748 wrote to memory of 980 748 data.exe 37 PID 748 wrote to memory of 980 748 data.exe 37 PID 748 wrote to memory of 980 748 data.exe 37 PID 636 wrote to memory of 1280 636 taskeng.exe 39 PID 636 wrote to memory of 1280 636 taskeng.exe 39 PID 636 wrote to memory of 1280 636 taskeng.exe 39 PID 636 wrote to memory of 1280 636 taskeng.exe 39
Processes
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C:\Users\Admin\AppData\Local\Temp\4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe"C:\Users\Admin\AppData\Local\Temp\4c14d8137e225d03bcc84f9296d86ab32c67b2fefe72049abf6f4e431acf70e0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1252 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE3⤵PID:1224
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn backgroundTaskHost /tr "C:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:1440
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C:\Windows\system32\taskeng.exetaskeng.exe {AF791BE3-97C9-4903-A1E2-E17384400819} S-1-5-21-293278959-2699126792-324916226-1000:TUICJFPF\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:636 -
C:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exeC:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"3⤵PID:1004
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn backgroundTaskHost /tr "C:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exe" /sc minute /mo 1 /F3⤵
- Creates scheduled task(s)
PID:980
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C:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exeC:\Users\Admin\AppData\Local\Temp\RdpSaUacHelper\data.exe2⤵
- Executes dropped EXE
PID:1280
-