Analysis
-
max time kernel
150s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-12-2020 22:18
Static task
static1
Behavioral task
behavioral1
Sample
jYkChFzZ.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
jYkChFzZ.exe
Resource
win10v20201028
General
-
Target
jYkChFzZ.exe
-
Size
31KB
-
MD5
d7e959acd7da6149aff2e71a7ab0713b
-
SHA1
578defaa4988bfc938688c6dea302c47c8d86ba0
-
SHA256
88d74958dd9791ae6b5955f1b3499d32beefb8aeaeaeefb6ace022e590af23b2
-
SHA512
39eee83283f5891be68b70b6a9af6ac021c71d6492f9f035302138e43716ab647e237f32ba199532d9e2df0be12a46289fe2fea5ddd4443d23858e08657bc1bf
Malware Config
Extracted
njrat
0.7d
MyBot
striker223.ddns.net:1604
17cdd78b405de2165b1a9f366dd395d1
-
reg_key
17cdd78b405de2165b1a9f366dd395d1
-
splitter
Y262SUCZ4UJJ
Signatures
-
Executes dropped EXE 1 IoCs
Processes:
Javaw.exepid process 1104 Javaw.exe -
Modifies Windows Firewall 1 TTPs
-
Drops startup file 2 IoCs
Processes:
Javaw.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\17cdd78b405de2165b1a9f366dd395d1.exe Javaw.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\17cdd78b405de2165b1a9f366dd395d1.exe Javaw.exe -
Loads dropped DLL 1 IoCs
Processes:
jYkChFzZ.exepid process 884 jYkChFzZ.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Javaw.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\17cdd78b405de2165b1a9f366dd395d1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Javaw.exe\" .." Javaw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\17cdd78b405de2165b1a9f366dd395d1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Javaw.exe\" .." Javaw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious use of AdjustPrivilegeToken 31 IoCs
Processes:
Javaw.exedescription pid process Token: SeDebugPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe Token: 33 1104 Javaw.exe Token: SeIncBasePriorityPrivilege 1104 Javaw.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
jYkChFzZ.exeJavaw.exedescription pid process target process PID 884 wrote to memory of 1104 884 jYkChFzZ.exe Javaw.exe PID 884 wrote to memory of 1104 884 jYkChFzZ.exe Javaw.exe PID 884 wrote to memory of 1104 884 jYkChFzZ.exe Javaw.exe PID 884 wrote to memory of 1104 884 jYkChFzZ.exe Javaw.exe PID 1104 wrote to memory of 1460 1104 Javaw.exe netsh.exe PID 1104 wrote to memory of 1460 1104 Javaw.exe netsh.exe PID 1104 wrote to memory of 1460 1104 Javaw.exe netsh.exe PID 1104 wrote to memory of 1460 1104 Javaw.exe netsh.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\jYkChFzZ.exe"C:\Users\Admin\AppData\Local\Temp\jYkChFzZ.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Javaw.exe"C:\Users\Admin\AppData\Local\Temp\Javaw.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Javaw.exe" "Javaw.exe" ENABLE3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\Javaw.exeMD5
d7e959acd7da6149aff2e71a7ab0713b
SHA1578defaa4988bfc938688c6dea302c47c8d86ba0
SHA25688d74958dd9791ae6b5955f1b3499d32beefb8aeaeaeefb6ace022e590af23b2
SHA51239eee83283f5891be68b70b6a9af6ac021c71d6492f9f035302138e43716ab647e237f32ba199532d9e2df0be12a46289fe2fea5ddd4443d23858e08657bc1bf
-
C:\Users\Admin\AppData\Local\Temp\Javaw.exeMD5
d7e959acd7da6149aff2e71a7ab0713b
SHA1578defaa4988bfc938688c6dea302c47c8d86ba0
SHA25688d74958dd9791ae6b5955f1b3499d32beefb8aeaeaeefb6ace022e590af23b2
SHA51239eee83283f5891be68b70b6a9af6ac021c71d6492f9f035302138e43716ab647e237f32ba199532d9e2df0be12a46289fe2fea5ddd4443d23858e08657bc1bf
-
\Users\Admin\AppData\Local\Temp\Javaw.exeMD5
d7e959acd7da6149aff2e71a7ab0713b
SHA1578defaa4988bfc938688c6dea302c47c8d86ba0
SHA25688d74958dd9791ae6b5955f1b3499d32beefb8aeaeaeefb6ace022e590af23b2
SHA51239eee83283f5891be68b70b6a9af6ac021c71d6492f9f035302138e43716ab647e237f32ba199532d9e2df0be12a46289fe2fea5ddd4443d23858e08657bc1bf
-
memory/1104-3-0x0000000000000000-mapping.dmp
-
memory/1460-6-0x0000000000000000-mapping.dmp