njrat | c37bcf56f3404eee897781ecdf994f8c733dcc0a402fa21bd440756a1467ae83

Analysis

max time kernel
153s
max time network
165s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
19/07/2023, 11:33

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General

Target

aaa.exe
Size

23KB
MD5

dd20d42a1555ecd374d47c41bfab8417
SHA1

374e9490ab73d7e9d0cf225d0e96d2ca77becbfb
SHA256

c37bcf56f3404eee897781ecdf994f8c733dcc0a402fa21bd440756a1467ae83
SHA512

a260e1b7de92028aff2b379972f9199948460dcc1d81ce86389226edeef3559f8fed2f468da998172374690efb414559ec4e8528be746d0e955136d91e52266b
SSDEEP

384:QMK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZKm:zb9glF51LRpcnuW

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
2440	netsh.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1014134971-2480516131-292343513-1000\Software\Microsoft\Windows\CurrentVersion\Run\33a8054157a3a1616c2f71e43acb6e31 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\aaa.exe\" .."	aaa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\33a8054157a3a1616c2f71e43acb6e31 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\aaa.exe\" .."	aaa.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe
Token: 33	1508	aaa.exe
Token: SeIncBasePriorityPrivilege	1508	aaa.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2440	1508	aaa.exe	30
PID 1508 wrote to memory of 2440	1508	aaa.exe	30
PID 1508 wrote to memory of 2440	1508	aaa.exe	30
PID 1508 wrote to memory of 2440	1508	aaa.exe	30

C:\Users\Admin\AppData\Local\Temp\aaa.exe
"C:\Users\Admin\AppData\Local\Temp\aaa.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\aaa.exe" "aaa.exe" ENABLE
  2⤵
  - Modifies Windows Firewall
  PID:2440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1508-54-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/1508-55-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/1508-56-0x0000000001E70000-0x0000000001EB0000-memory.dmp

Filesize
256KB

Download
memory/1508-57-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/1508-58-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/1508-59-0x0000000001E70000-0x0000000001EB0000-memory.dmp

Filesize
256KB

Download