njrat | a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

General

Target

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe
Size

29KB
MD5

3490a3125771a2ddd8d9d633be4201b0
SHA1

134db4d28672703ca6670b3f8d8823b1b1f877fe
SHA256

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8
SHA512

96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2
SSDEEP

384:CPqvANl7TxTD+VF2dbofPauxnaIuN15708COmqDk9jeHqGBsbh0w4wlAokw9Ohgd:5u75oa4fuTC8cqojeVBKh0p29SgRTn

Score

10^/10

njrat stiva evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Stiva

C2

stivadns.zapto.org:1177

Mutex

c628feb012b1a51cfd51ff0ba11260eb

Attributes

reg_key
c628feb012b1a51cfd51ff0ba11260eb
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

Java.exe

pid process

1352 Java.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1296 netsh.exe

pid	process
1296	netsh.exe

Drops startup file 2 IoCs

Processes:

Java.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c628feb012b1a51cfd51ff0ba11260eb.exe	Java.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c628feb012b1a51cfd51ff0ba11260eb.exe	Java.exe

Loads dropped DLL 1 IoCs

Processes:

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe

pid process

1976 a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe

pid	process
1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Java.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c628feb012b1a51cfd51ff0ba11260eb = "\"C:\\ProgramData\\Java.exe\" .."	Java.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\c628feb012b1a51cfd51ff0ba11260eb = "\"C:\\ProgramData\\Java.exe\" .."	Java.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

Java.exe

pid	process
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe
1352	Java.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Java.exe

description pid process

Token: SeDebugPrivilege 1352 Java.exe

description	pid	process
Token: SeDebugPrivilege	1352	Java.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exeJava.exe

description	pid	process	target process
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1976 wrote to memory of 1352	1976	a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe	Java.exe
PID 1352 wrote to memory of 1296	1352	Java.exe	netsh.exe
PID 1352 wrote to memory of 1296	1352	Java.exe	netsh.exe
PID 1352 wrote to memory of 1296	1352	Java.exe	netsh.exe
PID 1352 wrote to memory of 1296	1352	Java.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe
"C:\Users\Admin\AppData\Local\Temp\a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976

C:\ProgramData\Java.exe
"C:\ProgramData\Java.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1352

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\ProgramData\Java.exe" "Java.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\Java.exe
Filesize
29KB

MD5
3490a3125771a2ddd8d9d633be4201b0

SHA1
134db4d28672703ca6670b3f8d8823b1b1f877fe

SHA256
a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

SHA512
96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2

Download Submit
C:\ProgramData\Java.exe
Filesize
29KB

MD5
3490a3125771a2ddd8d9d633be4201b0

SHA1
134db4d28672703ca6670b3f8d8823b1b1f877fe

SHA256
a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

SHA512
96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2

Download Submit
\ProgramData\Java.exe
Filesize
29KB

MD5
3490a3125771a2ddd8d9d633be4201b0

SHA1
134db4d28672703ca6670b3f8d8823b1b1f877fe

SHA256
a5e656cedb3fe0dfc90d3840add5669385e8d60347a9a47ca697beb4c6b871d8

SHA512
96ecf261d86f97cc0b091cc01ff109ece03bbbbbf20cdf00fb50b6f1024ffc966602bf20b1ada0f802c616c0797276e5afbfe0e6a488391d787e10a0fa15f0d2

Download Submit
memory/1296-63-0x0000000000000000-mapping.dmp

Download
memory/1352-57-0x0000000000000000-mapping.dmp

Download
memory/1352-62-0x0000000074120000-0x00000000746CB000-memory.dmp

Filesize
5.7MB

Download
memory/1352-65-0x0000000074120000-0x00000000746CB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-54-0x00000000754E1000-0x00000000754E3000-memory.dmp

Filesize
8KB

Download
memory/1976-55-0x0000000074120000-0x00000000746CB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-61-0x0000000074120000-0x00000000746CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads