njrat | 85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa

General

Target

85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe
Size

863KB
MD5

301b9f7de5b10a8030c47e1121088667
SHA1

b21a782922b49d3b1be7abb205b1037e613fa13f
SHA256

85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa
SHA512

878381ce19b2ddb01ce96e90017c902a6d87283376354e862bf6c1a1772e182f6e7c5b7fc839ddc150cc3e79062aeaff584c880d4cfb6f6bdd9b3d810b14c509

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.10.10:5552

Mutex

0dc24807523d3cd24b54cd0996e4c49b

Attributes

reg_key
0dc24807523d3cd24b54cd0996e4c49b
splitter
|'|'|

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

6356.exeserver.exe

pid process

488 6356.exe
2656 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
488	6356.exe
2656	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0dc24807523d3cd24b54cd0996e4c49b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe
Token: 33	2656	server.exe
Token: SeIncBasePriorityPrivilege	2656	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe6356.exeserver.exe

description	pid	process	target process
PID 664 wrote to memory of 488	664	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe	6356.exe
PID 664 wrote to memory of 488	664	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe	6356.exe
PID 664 wrote to memory of 488	664	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe	6356.exe
PID 488 wrote to memory of 2656	488	6356.exe	server.exe
PID 488 wrote to memory of 2656	488	6356.exe	server.exe
PID 488 wrote to memory of 2656	488	6356.exe	server.exe
PID 2656 wrote to memory of 3992	2656	server.exe	netsh.exe
PID 2656 wrote to memory of 3992	2656	server.exe	netsh.exe
PID 2656 wrote to memory of 3992	2656	server.exe	netsh.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe

C:\Users\Admin\AppData\Local\Temp\85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe
"C:\Users\Admin\AppData\Local\Temp\85c9f16abba34e9fd9b0414251f015c8a8b70427944d7b37e09995cf3f0ac7aa.exe"
1⤵
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- System policy modification
PID:664
- C:\Users\Admin\AppData\Local\Temp\6356\6356.exe
  "C:\Users\Admin\AppData\Local\Temp\6356\6356.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:488
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      PID:3992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6356\6356.exe

MD5
56ba33bb6dd5515e6594b751e45a0e16

SHA1
c4d2ca7195931a1f6d4f09024f69d1edf4db5318

SHA256
cd71b2faffb99cb1e2d06041fdb809211b1b561b08ed443314ee953f2cc70231

SHA512
189e9fe0bfd8870424b3442233168b729597803ca524f42a4a6ea389771a0521e1b209042bf31a05bd347530de44c0935c6194d350f422205880b7a636c8755b

Download Submit
C:\Users\Admin\AppData\Local\Temp\6356\6356.exe

MD5
56ba33bb6dd5515e6594b751e45a0e16

SHA1
c4d2ca7195931a1f6d4f09024f69d1edf4db5318

SHA256
cd71b2faffb99cb1e2d06041fdb809211b1b561b08ed443314ee953f2cc70231

SHA512
189e9fe0bfd8870424b3442233168b729597803ca524f42a4a6ea389771a0521e1b209042bf31a05bd347530de44c0935c6194d350f422205880b7a636c8755b

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

MD5
56ba33bb6dd5515e6594b751e45a0e16

SHA1
c4d2ca7195931a1f6d4f09024f69d1edf4db5318

SHA256
cd71b2faffb99cb1e2d06041fdb809211b1b561b08ed443314ee953f2cc70231

SHA512
189e9fe0bfd8870424b3442233168b729597803ca524f42a4a6ea389771a0521e1b209042bf31a05bd347530de44c0935c6194d350f422205880b7a636c8755b

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

MD5
56ba33bb6dd5515e6594b751e45a0e16

SHA1
c4d2ca7195931a1f6d4f09024f69d1edf4db5318

SHA256
cd71b2faffb99cb1e2d06041fdb809211b1b561b08ed443314ee953f2cc70231

SHA512
189e9fe0bfd8870424b3442233168b729597803ca524f42a4a6ea389771a0521e1b209042bf31a05bd347530de44c0935c6194d350f422205880b7a636c8755b

Download Submit
memory/488-114-0x0000000000000000-mapping.dmp

Download
memory/488-117-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/2656-118-0x0000000000000000-mapping.dmp

Download
memory/2656-121-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

Filesize
4KB

Download
memory/3992-122-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads