njrat | f16873bf7953ec4a08c62a32dc6365c8a74303c09c723f4548e2ea3452eb0bbc

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2023 19:35

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General

Target

a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Size

23KB
MD5

a65150c7e6a1470efdeb95b92e40a5ea
SHA1

0e876d2c5da0ce4f7887af1f1b48272c13aaf3ec
SHA256

f16873bf7953ec4a08c62a32dc6365c8a74303c09c723f4548e2ea3452eb0bbc
SHA512

a29eb17ff452f54dc0f273114c769f64bcf8aadcf129cc49555905120c7cdb58a8ce06e77852414782c84c2b13cf9118095e5985e33910b655db0c603e228312
SSDEEP

384:upc6ze6e1PAhJVzC3tC1im/BsTx46PgZ0rap9HBmRvR6JZlbw8hqIusZzZAz:ube9EJLN/yRpcnuF

Score

10^/10

njrat evasion trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Processes:

netsh.exe

pid process

664 netsh.exe

pid	process
664	netsh.exe

Drops startup file 2 IoCs

Processes:

a65150c7e6a1470efdeb95b92e40a5ea_JC.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27f71527bed7617b3e2e3f3ed8ecf225.exe	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27f71527bed7617b3e2e3f3ed8ecf225.exe	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

a65150c7e6a1470efdeb95b92e40a5ea_JC.exe

description	pid	process
Token: SeDebugPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: 33	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
Token: SeIncBasePriorityPrivilege	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a65150c7e6a1470efdeb95b92e40a5ea_JC.exe

description	pid	process	target process
PID 4520 wrote to memory of 664	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe	netsh.exe
PID 4520 wrote to memory of 664	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe	netsh.exe
PID 4520 wrote to memory of 664	4520	a65150c7e6a1470efdeb95b92e40a5ea_JC.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a65150c7e6a1470efdeb95b92e40a5ea_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a65150c7e6a1470efdeb95b92e40a5ea_JC.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4520

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\a65150c7e6a1470efdeb95b92e40a5ea_JC.exe" "a65150c7e6a1470efdeb95b92e40a5ea_JC.exe" ENABLE
2⤵
- Modifies Windows Firewall
PID:664

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4520-0-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4520-1-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4520-2-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

Filesize
64KB

Download
memory/4520-3-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4520-4-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

Filesize
64KB

Download